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#2429583 - 11/09/11 07:09 AM CHECK YOUR TIRE PRESSURE!
JHZR2 Offline



Registered: 12/14/02
Posts: 33617
Loc: New Jersey
Tis the season, temperature dropping.

Depending upon how your TPMS is set, you might loose 10+ psi before it alerts you! Thats a lot of air in a low profile tire like many cars have these days.

And of course cars without TPMS need to be watched because you just dont know.

With it getng colder, we can see some pretty big fluctuation. Some cold morning, before too long, go out and check the pressure!

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#2429593 - 11/09/11 07:15 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Kira Offline


Registered: 08/19/10
Posts: 1069
Loc: Champlain/Hudson Valley
Hello, GOOD ADVICE except
1) People are frequently sooooooo lazy
2) "I can't be baaaaaathuurd"
3) "I never did that before!"
4) "I'm a brain surgeon, my tires don't loose air."
Kira

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#2429612 - 11/09/11 07:55 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
eljefino Offline


Registered: 06/15/03
Posts: 23906
Loc: ME
Is there a thread from a previous november we could bump for this reminder? laugh

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#2429615 - 11/09/11 07:58 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Astro14 Offline


Registered: 10/10/10
Posts: 4446
Loc: Virginia Beach
Am I the only one who checks it monthly, or before a road trip, regardless of season?
_________________________
32 Packard 15W40
90 4Runner 10W40 QS4X4
92 300E 5W40 LiquiMoly
02 Volvo V70 T5 0W40 M1
02 Volvo V70 XC 5W30 PU
05 MB S600 0W40 M1
06 Corolla 5W30 Edge

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#2429617 - 11/09/11 08:00 AM Re: CHECK YOUR TIRE PRESSURE! [Re: Astro14]
crosseyedwx Offline


Registered: 03/02/08
Posts: 257
Loc: Tallahassee, FL USA
Originally Posted By: Astro14
Am I the only one who checks it monthly, or before a road trip, regardless of season?


I check it weekly, at least. wink
_________________________
05 KIA Spectra EX 5MT 123k mi - QS Torque Power 5W30, PureONE 14459
06 Honda Accord LX-SE 4cyl 5MT 125k mi - PP 0W20, Mobil 1 M1-110

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#2429624 - 11/09/11 08:09 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
AstroTurf Offline


Registered: 12/28/09
Posts: 532
Loc: Richmond, VA
Sunday Morning before the sun hits em.

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#2429627 - 11/09/11 08:11 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
rslifkin Offline


Registered: 06/27/10
Posts: 2202
Loc: Stamford, CT / Rochester, NY
Once a week here.


Edited by rslifkin (11/09/11 08:11 AM)
_________________________
1998 Jeep Grand Cherokee 5.9 Limited with Heads/Cam/Headers/Exhaust/Tune/Shift Kit (173k miles, bought with 100k)
Rotella T6 @ 6k OCI

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#2429638 - 11/09/11 08:26 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Bambam Offline


Registered: 12/16/03
Posts: 747
Loc: CT
Don't forget the spare !

Especially for us pick up truck drivers !
_________________________
07 DMAX CC 4x4
265 Goodyears
Bilstein 5100's
T-C pump rub fix
EGR Blocked
PCV rerouted
efi live tuned

Student of dnewton's dino teachings

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#2429640 - 11/09/11 08:28 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
hypervish Offline


Registered: 04/20/10
Posts: 1477
Loc: new jersey
I check it once a month. I haven't see a major depletion of nitrogen.
_________________________
2000 Lexus RX300 AWD 211k miles
PP w/ Pure Plus 0W-20
Tranny - Castrol Transmax IMV / Toyota Type IV
Transfer Case and Rear LSD - Royal Purple 75w-90

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#2429654 - 11/09/11 08:43 AM Re: CHECK YOUR TIRE PRESSURE! [Re: eljefino]
Drew99GT Offline


Registered: 10/11/02
Posts: 20656
Loc: Colorado Springs
Originally Posted By: eljefino
Is there a thread from a previous november we could bump for this reminder? laugh


I've started many cold weather tire pressure threads! But it is good we're getting the reminder again.

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#2429662 - 11/09/11 08:50 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
ARB1977 Offline


Registered: 06/12/05
Posts: 4477
Loc: North Texas
I do a walk around every time i get into my Tacoma... mainly to look at my tires. I do the same on my wifes V. Pressures get checked often too.
_________________________
2002 Tacoma 3.4L 159K (as of 04-05-14)
M1 HM 5W30 / Fram Synthetic

2008 CRV 2.4L 105K (as of 03-22-14)
PP 0W20 / Honda A02

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#2429664 - 11/09/11 08:51 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
supton Offline


Registered: 11/09/08
Posts: 4626
Loc: NH
Every couple of months. But I eyeball it at least once a week. I've noticed that it has to drop severly--like from 40psi down to 30psi--for me to really notice the bulge looks differently.

I'd be more anal about keeping it at 32psi or 40psi or whatever magical number, but so far, through several sets of tires, I've yet to notice any difference in tire wear, from 30psi up to 40psi (over that and I do get fast center wear).

When I drive down the road, I do look at other peoples tires. Low tires stand out to me. I don't want to say I can gauge the pressure by sight--but after a while, I think you can tell to 10psi or so. And you can see "drastically" low very easily. And, if you look at your own tires weekly, I think you can tell when they look different.

I dunno. I don't race, so I don't care about a 2psi difference. I also don't have TMPS (not on my Jetta anyhow), and don't drive so that I regularly engage the ESC that I don't have either. Between the rough roads we have, the high probability of having snow/ice for half the year (or leaves, or road debris), the tall/skinny tires I run (195/60?) and the age of my struts I'm not sure that my car would really handle that much differently in an avoidance situation if the tires were up/down by 5psi.

Only time I've checked prior to a road trip is when the road trip is going to be more than say 5 hours. Honestly, I think it takes about 6 months to lose 10psi; changing wheels for the seasons seems to require about that much air to top off the unused set.
_________________________
2004 VW Jetta Wagon, TDI, 5spd manual, 299kmile, his
2011 Toyota Camry, base, 6spd manual, 78k, hers
2010 Toyota Tundra double cab, 4.6L, auto, 88k

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#2429727 - 11/09/11 09:55 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
AITG Offline


Registered: 12/22/06
Posts: 314
Loc: USA
I'll throw one in to this as well. If you have a Space Saver spare, it's supposed to be 60 psi. If you don't check it every oil change it won't be anywhere close to that.

I've tried metal valve caps, replacing the valve core, nothing helps other than checking and inflating.

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#2429779 - 11/09/11 10:51 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
supton Offline


Registered: 11/09/08
Posts: 4626
Loc: NH
I need to replace mine (again) but I make sure to leave a cheapo tire pump (electric) in the trunk. Gets more use to inflate other people's tires than mine (have compressor at home), but would cover me in case the spare is flat.
_________________________
2004 VW Jetta Wagon, TDI, 5spd manual, 299kmile, his
2011 Toyota Camry, base, 6spd manual, 78k, hers
2010 Toyota Tundra double cab, 4.6L, auto, 88k

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#2429803 - 11/09/11 11:17 AM Re: CHECK YOUR TIRE PRESSURE! [Re: Kira]
Nick R Offline


Registered: 07/14/09
Posts: 10498
Loc: Amherst, OH
Originally Posted By: Kira
Hello, GOOD ADVICE except
1) People are frequently sooooooo lazy
2) "I can't be baaaaaathuurd"
3) "I never did that before!"
4) "I'm a brain surgeon, my tires don't loose air."
Kira




I put air in our tires last week. They were getting down to 28, 29 psi or so when cold, pumped them all back up to 35, 36.


Edited by Nick R (11/09/11 11:17 AM)
_________________________
13 Ford Focus SE 2.0L/34,000miles/Pennz Plat PurePlus 0W-20/FRAM Ultra

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#2429811 - 11/09/11 11:23 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
DaHen Offline


Registered: 03/26/10
Posts: 379
Loc: Massachusetts
Once a month.
_________________________
Stock '06 Altima

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#2430015 - 11/09/11 02:42 PM Re: CHECK YOUR TIRE PRESSURE! [Re: Drew99GT]
Quattro Pete Offline


Registered: 10/30/02
Posts: 25504
Loc: Illinoistan
Originally Posted By: Drew99GT
Originally Posted By: eljefino
Is there a thread from a previous november we could bump for this reminder? laugh


I've started many cold weather tire pressure threads! But it is good we're getting the reminder again.

Yeah, once a year I can handle. It's the weekly "Which oil is a true synthetic" and "When should I dump my FF" threads that sometimes get to me. smile
_________________________
'02 530i (PU 5W-40)
'08 C300 4Matic (M1 0W-40)
'13 F700 GS (Spectro 15W-50)

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#2430039 - 11/09/11 03:00 PM Re: CHECK YOUR TIRE PRESSURE! [Re: Astro14]
Garak Offline


Registered: 12/05/09
Posts: 11334
Loc: Regina, Saskatchewan, Canada
Originally Posted By: Astro14
Am I the only one who checks it monthly, or before a road trip, regardless of season?


At least once a week for me. Daily when I was doing fleet management.
_________________________
Plain, simple Garak.

2008 Infiniti G37 coupe - Mobil Delvac 1 ESP 5w-40, Hastings LF113
1984 F-150 4.9L six - Quaker State GB 10w-30, Wix 51515

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#2430110 - 11/09/11 04:14 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 14748
Loc: Sunny Florida
Yep, daily here, too. But just a visual. We find that once we get a tire seated well on the rim we simply don't lose air pressure any more. These are "E" rated Michelin LTX MS and MS2's.

My car has an individual readout for all 4 tires that I check often.
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

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#2430164 - 11/09/11 05:09 PM Re: CHECK YOUR TIRE PRESSURE! [Re: Astro14]
HTSS_TR Offline


Registered: 04/17/06
Posts: 12901
Loc: Irvine, CA
Before road trip and/or once/twice a year.
_________________________
'94 LS400
'00 E430
'04 S2000
"Consumerism has accustomed us to waste. But throwing food away is like stealing it from the poor and hungry" Pop Francis

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#2430315 - 11/09/11 08:27 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
needsducktape Offline


Registered: 05/08/11
Posts: 764
Loc: Pittsburgh PA
I take the time and go through friends and family cars -safe for them = safe for everyone
_________________________
2002 Audi A4 quattro 1.8t
158,000 miles
5-speed manual
m1 0-40 and Napa Gold filter



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#2431344 - 11/10/11 08:51 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
johnsmellsalot Offline


Registered: 07/02/11
Posts: 526
Loc: Texas
I check my tires every week with a digital gauge before the sun shines on them. (Including the spare)
_________________________
1999 Buick Century 180,000 miles (first car)
2008 Chrysler PT Cruiser 70,000 miles

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#2431522 - 11/11/11 02:45 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
The Critic Offline


Registered: 08/30/04
Posts: 17698
Loc: Walnut Creek, CA
Monthly.

A friend just came by tonight and I checked the pressures on his Civic Hybrid. They were all 25-27. Door jamb said 32 psi. I pumped all of them up to 35 psi. The spare also measured 22 psi....pumped that one up to 60!

Originally Posted By: Nick R

I put air in our tires last week. They were getting down to 28, 29 psi or so when cold, pumped them all back up to 35, 36.


Shame on you for letting them get that low!

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#2431877 - 11/11/11 01:32 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
gizzsdad Offline


Registered: 03/30/05
Posts: 457
Loc: Iowa
Reminds me I need to check my spares.

I will also have to admit that the combination of tires that don't seem to lose much pressure(other than temp. changes), and TPMS has made me less vigilant than I used to be.

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#2436899 - 11/17/11 12:02 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Rolla07 Offline


Registered: 11/05/11
Posts: 1694
Loc: MTL, CANADA
Check pressure monthly, luckily like most have said, I can generally tell when pressure is low, corolla requires 30 psi, i put 32, i find 30 is not enough psi. I usually do a walk around each time before i get in the car.
_________________________
2007 Corolla Red Pearl 120,000 miles
M1 AFE 0W20 oil/ Fram TG filter
2001 Accent 126,000 miles
Motomaster Supreme/ Pure One filter



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#2437199 - 11/17/11 11:35 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Boss302fan Offline


Registered: 11/07/09
Posts: 1915
Loc: Oconomowoc Wi
I check every other week and usually go 2 PSI over whats on the door sticker...

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#2438088 - 11/18/11 09:27 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Jim Allen Offline


Registered: 08/12/05
Posts: 4477
Loc: NW Ohio
About monthly but since I put Nitrogen in them, I seldom have to update them. Basically now only at the change of seasons. I also find the Michelin winter tires on the truck (year round Michelins on the Honda) have much better liners and don't lose much air. I loose more pressure (Nitrogen or shop air) on the Dick Cepeks that are my summer tires... I suppose due to a more porous liner.
_________________________
Jim Allen
Keepin' the Good Old Days of Four Wheeling Alive

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#2438207 - 11/18/11 11:37 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
weebl Offline


Registered: 01/15/06
Posts: 509
Loc: Canada
Probably monthly, though I admit to sometimes doing maybe a little less frequently as none of my tires in the past several years have had air leak issues. But regardless, I always check before a road trip, and when towing, before starting out each day.
_________________________
2006 Toyota Sienna - 3.3L 3MZ-FE
2014 Volkswagen Passat TDI MT - 2.0L CKRA

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#2438225 - 11/18/11 11:59 AM Re: CHECK YOUR TIRE PRESSURE! [Re: Jim Allen]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 14748
Loc: Sunny Florida
Originally Posted By: Jim Allen
I also find the Michelin winter tires on the truck (year round Michelins on the Honda) have much better liners and don't lose much air.


This is my experience with our E rated truck tires. Most are now running the new LTX MS2 style and they simply do not leak air at all. It's another small plus for Michelin quality control.
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

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#2440666 - 11/21/11 08:48 AM Re: CHECK YOUR TIRE PRESSURE! [Re: SteveSRT8]
Kira Offline


Registered: 08/19/10
Posts: 1069
Loc: Champlain/Hudson Valley
Hello, I do a pressure check ~ twice monthly. All my life the cause of lost pressure has been A) SMALL PUNCTURES which leak slowly. B) Spring and Autumn temperature variations have ALWAYS caused loss in pressure. You can set your watch by it, so to speak. Kira

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#2441868 - 11/22/11 02:05 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
cp3 Offline


Registered: 07/26/06
Posts: 2585
Loc: Kitchener, Ontario, Canada
Every week or two. Try to be more diligent and make sure it's weekly this time of year and in the spring. Easier to beat the sun up now too.
_________________________
Dodge Charger|Pennzoil Platinum 5w20|Mopar MO-744
Pontiac G6 GT|Mobil 1 0w40|Mobil 1 M1-101

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#2442819 - 11/23/11 01:08 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
mrfish Offline


Registered: 01/09/08
Posts: 56
Loc: SoCal
I check all five of my vehicles monthly. You would be surprised how much they lose in a month.
_________________________
04 Ram 1500 QC
13 Hyundai Sonata
05 Mustang Conv
06 Pontiac Solstice
06 Chevy Tahoe

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#2445060 - 11/26/11 03:24 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
pavelow Offline


Registered: 11/24/09
Posts: 558
Loc: Orange Park, FL
I check my tire PSI every couple of weeks or so in the colder months. I usually lose a pound or two evenly amongst all tires. With gas prices where they are, not checking your tires is like tossing money out the window.
_________________________
06 Pontiac GTO LS2
08 Chevy TrailBlazer SS LS2


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#2448544 - 11/29/11 06:56 PM Re: CHECK YOUR TIRE PRESSURE! [Re: pavelow]
Dwight_Frye Offline


Registered: 09/05/09
Posts: 89
Loc: California
I've always been diligent about checking my tire pressures every couple of weeks with a good quality gauge and inspecting them for nails before any trip longer than my daily commute as I seem to pick up about 1 per year. A couple of years ago there was a sudden cold snap. I got in my car in the early morning, drove a block or two and the TPS alarm went off. It didn't tell me which tire it was so I pulled into the closest gas station and gauged the tires. All 4 were down 9 lbs from the 35 PSI that they were recently checked at. I would not have expected more than 3-4 lbs difference for the cold weather but there it was.

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#2448893 - 11/30/11 01:08 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
wirelessF Offline


Registered: 10/04/07
Posts: 1243
Loc: Oahu, Hawaii
I should make a habit to also check the spare tire when I'm underneath my truck lubing the chassis, etc. Last week I found the spare tire to be at 20 psi. Useless. Aired it up to 40psi.
_________________________
For racing or off-road use only!

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#2460675 - 12/12/11 05:44 PM Re: CHECK YOUR TIRE PRESSURE! [Re: Astro14]
2009Edge Offline


Registered: 06/10/09
Posts: 103
Loc: Texas
I check mine every month, sometimes more often. Recently I took a short job in PA, (home is TX) went out and checked mine and they were down about 7 psi. Got out the little battery powered compressor and put them back at 38. Noticed about a 1 mpg increase. My tires seem to be wearing evenly across the tread. cool

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#2461822 - 12/13/11 08:58 PM Re: CHECK YOUR TIRE PRESSURE! [Re: hypervish]
Hethaerto Offline


Registered: 09/08/08
Posts: 820
Loc: Tennessee, USA
Originally Posted By: hypervish
I check it once a month. I haven't see a major depletion of nitrogen.


Me, too. My tires haven't lost any pressure in two whole years. 36 psi consistently, regardless of season. Only now do I need to boost them with some fresh nitrogen. I've never seen that before.
_________________________
I like it cheep.

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#2462024 - 12/14/11 06:01 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 14748
Loc: Sunny Florida
We routinely check our tires at least once a week, mostly twice.

Many of our trucks require no air at all, and this is at 80 psi.

Not all tires leak down. And since regular air is mostly nitrogen...
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

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#2462063 - 12/14/11 07:05 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
kr_bitog Offline


Registered: 10/06/07
Posts: 728
Loc: South East Asia
If the tires has no leaks, the speed of air loss depends more on the how frequent the pressure checked and how big is the air volume within the tyre itself(SUV tyre less prone than sport compact low profile)

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#2463926 - 12/15/11 07:55 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
subiedriver Offline


Registered: 06/04/10
Posts: 517
Loc: Colorado
I check mine once a month, its never strayed more than 4 psi from the 32 psi I keep'em at.
_________________________
2004 Subaru Legacy 4 door, 2.5, 140,000 miles
Always Mobil 1, since I bought it at 80,000 miles.
30 mpg

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#2470868 - 12/23/11 07:51 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Nate_V8 Offline


Registered: 05/14/09
Posts: 21
Loc: Ontario, Canada
I check mine every couple months as I know much it lowers your mpg.
_________________________
1987 Mustang GT T-top, 100,000km and running mobil 1 0w40
2003 Ford ZX5 running petrocan 0w30 since 150k

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#2495872 - 01/16/12 07:39 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Patman Offline



Registered: 05/27/02
Posts: 19280
Loc: Oakville, Ontario
When I was in Florida at the beginning of this month I had a 2012 Kia Rio as a rental car and it is equipped with a tire pressure monitoring system. At one point the low tire pressure light came on the dash, although this system didn't say which tire it was. I ended up stopping at a gas station and using the air pump with those crude built in pressure gauges and it looked like all four tires were the same pressure, but all were under 30 psi so I added about 5 or 6 to each one. That day was pretty cold for Florida, only about 50 degrees, so I guess the last time the rental company checked and set all the pressures it was probably at least 20 degrees warmer outside.
_________________________
2005 Corvette (M1 5w30 & Fram Ultra)
2006 Civic EX Coupe (M1 0w20 & Fram Ultra)
2010 BMW 328i X-Drive (M1 0w40 & Mann filter)

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#2499537 - 01/19/12 06:59 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Donald Offline


Registered: 03/21/04
Posts: 13434
Loc: Upstate NY
If they can have tire monitoring, they should be able to take the next step and fill the tire automatically.
_________________________
2001 Jeep Grand Cherokee Laredo 4.0 - PP & M1
1999 Dodge Ram 2500 w/Cummins - Rotella T6 & M1
Amsoil ATF in both vehicles & Magnefine filter.

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#2504325 - 01/24/12 01:49 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
boxcartommie22 Offline


Registered: 01/03/03
Posts: 2983
Loc: moutain country
i do my vehicles once a month
_________________________
2001 Lincoln Conti,RL,K&N,SS Filter,Lubegard,Archoil
2007 Grand Marquis,RL,K&N,SS Filter,Lubegard,Archoil
2010 Raptor,RL,SS Filter,Lubegard,Archoil

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#2509362 - 01/29/12 12:39 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Donald Offline


Registered: 03/21/04
Posts: 13434
Loc: Upstate NY
The temp swings are wild now also. From -5F on a cold evening to 40F on a warm day.
_________________________
2001 Jeep Grand Cherokee Laredo 4.0 - PP & M1
1999 Dodge Ram 2500 w/Cummins - Rotella T6 & M1
Amsoil ATF in both vehicles & Magnefine filter.

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#2509732 - 01/29/12 07:34 PM Re: CHECK YOUR TIRE PRESSURE! [Re: Donald]
Garak Offline


Registered: 12/05/09
Posts: 11334
Loc: Regina, Saskatchewan, Canada
I'm surprised how sensitive these TPMS can be, speaking of temperature swings. My car is stored in a garage at 10 C. That's the temperature, of course, that I fill and check the tires, then.

We got a massive cold snap a couple weeks back, and the TMPS kicked in after the vehicle had been allowed to cool to ambient, even though the pressure was fine in the garage. I had to give a cushion of a couple PSI, and the light went out.
_________________________
Plain, simple Garak.

2008 Infiniti G37 coupe - Mobil Delvac 1 ESP 5w-40, Hastings LF113
1984 F-150 4.9L six - Quaker State GB 10w-30, Wix 51515

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#2523122 - 02/02/12 02:26 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
eastbounddown22 Offline


Registered: 02/02/12
Posts: 4
Loc: Denver, CO 80230
Air pressure is surprisingly important for safety and even gas mileage. Always do a walk around check at least once a week.

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#2525554 - 02/04/12 05:42 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Capa Offline


Registered: 01/04/10
Posts: 1208
Loc: Oklahoma
Typically I check my tires once a month. However, when it gets below freezing during the winter I check twice a month. I also usually keep my tires overinflated by 2 PSI. It's amazing how much air the tires can lose when it is consistently below freezing.

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#2534981 - 02/13/12 12:03 PM Re: CHECK YOUR TIRE PRESSURE! [Re: SteveSRT8]
HerrStig Offline


Registered: 08/24/11
Posts: 2929
Loc: Boston, MA
YUp, about 78% as I recall, so all the bad things that happen must be due to the 22% "other stuff".

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#2550184 - 02/27/12 12:31 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
cutter Offline


Registered: 02/06/12
Posts: 762
Loc: Philadelphia, PA
I use a bicycle floor pump to top off air pressure weekly. The dial gauge on it is much more accurate than a stinky pen gauge as well.

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#2551874 - 02/28/12 10:18 PM Re: CHECK YOUR TIRE PRESSURE! [Re: cutter]
R2d2 Offline


Registered: 12/08/08
Posts: 524
Loc: New York, L.I
I do the same thing, easy to put a couple pounds in.
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2014 Acura MDX
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#2553431 - 03/01/12 01:06 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
HerrStig Offline


Registered: 08/24/11
Posts: 2929
Loc: Boston, MA
Rim corrosion on alloy rims can sneak up on you with very slow leaks.

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#2582129 - 03/28/12 08:27 AM Re: CHECK YOUR TIRE PRESSURE! [Re: HerrStig]
Miller88 Offline


Registered: 04/09/08
Posts: 6494
Loc: Onondaga County
Originally Posted By: HerrStig
Rim corrosion on alloy rims can sneak up on you with very slow leaks.

Going to do a bump here ...

But I hate alloy wheels. Living in NYS I've come to hate them for a few reason - they corrode to the hub of the vehicle and when they get old they seem to warp constantly. My old car had alloy wheels, when it got around 8 years old, I was constantly replacing wheels. Granted, I would replace warped alloy wheels with junkyard wheels and those would only last maybe a year or less.

My Cherokee came with a set of A/T tires on 15'' Alloy wheels (I have a set of mud tires on 16'' steel wheels for everyday driving and off road). Sitting in my living room, one of them always goes flat. Nothing wrong with the tire, just a corroded wheel leaking air. Hate alloy wheels. I have a set of steel wheels I need to get repainted and mounted.

I have a bit of a weird method. I use a power inverter and a small compressor with tank, but it works well.
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#2606935 - 04/22/12 09:39 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Brigadier Offline


Registered: 03/11/12
Posts: 131
Loc: WA
My tires have a max pressure of 44 PSI, so I inflate mine to 38 psi cold.
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#2644622 - 06/04/12 10:51 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
mystere Offline


Registered: 08/13/11
Posts: 10
Loc: California
I follow the old school method in maintaining tires: I inflate them to the maximum cold pressure posted on the tire sidewall. When the tire warms up during driving, the tire runs cooler when it's inflated to its maximum pressure. You're less likely to have the casing separate from the tire if you keep them inflated and running cooler. I have noticed more tire treads on freeways over the past 10 years. Also, whenever you buy new tires, be aware of what country the tire is manufactured in. Some of them are made in China, and are prone to having the casing (treads) separate when underinflated. Even when they're inflated to what the vehicle manufacturer recommends, they separate more often. If your vehicle has a TPMS and it turns on, it means your tires are underinflated to a very dangerous level, or that one of your tires has a leak. I had a screw in one of my tires once, and that triggered the TPMS on my Honda Fit.
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#2650097 - 06/10/12 09:13 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
CBR.worm Offline


Registered: 05/10/05
Posts: 1406
Loc: Jupiter, Fl
I check them about every two weeks on the BMW. That is how long it takes for the left rear tire to drop from 36 to 30psi which will trigger the TPMS warning. It is a bad tire that has leaked since it was put on. We had it moved to a different rim and the leak followed the tire, but our local tire shop cannot find a leak - I assume it has to be rolling under load to leak. The other 3 Conti's lose a little air and need to be added to every couple months - they will lose 6 psi in that time. It could be the wheels or TPMS seals, etc., but we need to keep an eye on them.

The FX has a digital readout for each tire on the dash, it has Yokohama Parada-X 's, they lose very little. I typically have to add air when the temperature drops, then they will stay in range for the rest of the year.

On my G35 I have to add air when it gets cold and let air out when it gets hot. They typically do not lose any air. That was with Goodyear F1 GS-D3's, Michelin PS2's and Michelin Pilot SS's. With the Continental DW's I had to add air about once a month, which seemed totally reasonable. I check them about once a month or before I abuse them.

What is interesting is watching how much tire pressure drops when you are on the highway and go into a rainstorm that drops the temperature from 90 to 70 degrees. In the FX it is not uncommon to see a 4 psi drop with the cold wet. I assume tire temp drops much more significantly with the water cooling them, I also imagine the asphalt temp drops from over 140 degrees to about 90.
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#2650146 - 06/10/12 10:15 AM Re: CHECK YOUR TIRE PRESSURE! [Re: mystere]
Astro14 Offline


Registered: 10/10/10
Posts: 4446
Loc: Virginia Beach
Originally Posted By: mystere
I follow the old school method in maintaining tires: I inflate them to the maximum cold pressure posted on the tire sidewall.


That's not old school...that's just wrong...

That pressure is predicated on the tire's max load rating...and has nothing to do with what pressure your application requires...there have been so many threads on this, I won't bother to repeat, but I would encourage you to do a little research and updating to your approach...
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#2656464 - 06/17/12 12:23 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Prelude Offline


Registered: 05/18/06
Posts: 74
Loc: Toronto, Canada
I find it excessive to check the pressure once a month unless there is a problem. The pressure in my tires doesn't change much even after 3 month. So usually I check the pressure every season to adjust it according to the ambient temperature. I set up the pressure in a specific way: rear tires - 2.0 bar as recommended but I inflate the front tires to the pressure I find the most comfortable and safe but not less that the recommended. Currently it is 2.4 bar which is not far from the recommended 2.2 bar. 2.5 bar makes the car to oversteer a bit.

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#2665081 - 06/25/12 10:48 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Onug Offline


Registered: 03/19/12
Posts: 19
Loc: Washington, USA
I check the tires every 2-4 months as I get time, and the spare once a year.

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#2675568 - 07/06/12 09:44 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Benzadmiral Offline


Registered: 10/12/05
Posts: 3611
Loc: New Orleans
Now that I have a plug-in inflator from Sears, I do it about once a month and before a road trip, and on the rare occasion that the temperature drops around here.

Since the spare is a little hard to get to -- it's under the floor of the trunk, and I have to unpack everything to get to it -- I check it about every six months, or before a road trip.
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#2700112 - 07/30/12 06:48 PM Re: CHECK YOUR TIRE PRESSURE! [Re: Astro14]
r34dy2fly Offline


Registered: 11/02/08
Posts: 153
Loc: Fort Polk, LA
Originally Posted By: Astro14
Originally Posted By: mystere
I follow the old school method in maintaining tires: I inflate them to the maximum cold pressure posted on the tire sidewall.


That's not old school...that's just wrong...


I'm glad you got to it before I did. I couldn't believe what I was reading. As stated the tire pressure on the side of the tire is MAX meaning that is all the tire can safely sustain. What you SHOULD be going off of is the air pressure label that is conveniently located on the inside of the door. It should tell you what to run your tires at cold. I don't even know where you got this more air = cooler concept.
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01 Porsche 911 Turbo
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#2704612 - 08/04/12 08:53 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
CapriRacer Offline


Registered: 02/22/03
Posts: 2483
Loc: Somewhere in the US
For those of you who are influenced by data.

Let's say you are designing a vehicle - and in the process of selecting tires, you come across the following options:

a) P205/70R15 at 35 psi = 1499# load carrying capacity. Max pressure on the sidewall = 44 psi.

b) P225/70R15 at 26 psi = 1521# load carrying capacity. Max pressure = 44 psi.

For practical purposes, these 2 tires and corresponding pressure result in the same load carrying capacity.

So why is the max pressure listed on the sidewall the correct pressure? Obviously it isn't.
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CapriRacer

Visit my web site: www.BarrysTireTech.com

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#2707976 - 08/07/12 06:23 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
TC Offline


Registered: 09/12/03
Posts: 1638
Loc: California
"Max. Pressure" equals.....drumroll, please.....maximum tire inflation pressure. Otherwise it might have imprinted in the rubber, "Recommended Inflation Pressure" or "Required Inflation Pressure," which it doesn't. The imprint is essentially a safety warning, rather than a recommended or required setting. Same as a redline mark on a tach.

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#2717327 - 08/17/12 01:21 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
accent2012 Offline


Registered: 02/08/12
Posts: 441
Loc: Orlando, FL
Maximum SAFE OPERATING pressure... you can inflate a tire to 50+ PSI and not blow on you... it's when you put on weight and use it is w hen the tire becomes unstable and blow. So, Max. Pressure on the sidewall = Max. SAFE pressure.

Max. Pressure label is intentional and is there to protect the consumer and the manufacturer.

Why would you intentionally fill a tire beyond the max. pressure rating on the sidewall?
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Hyundai Accent 2012

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#2738681 - 09/09/12 08:49 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
eljefino Offline


Registered: 06/15/03
Posts: 23906
Loc: ME


Wife's car picked this up. Routine "is it round" eyeballing caught it. Pre- TPMS era car. Tire was "known good" and never needed topping up, until it suddenly lost 7 lbs a day. wink

Went in at a good angle, too, check out the end where it wore.

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#2738725 - 09/09/12 09:50 AM Re: CHECK YOUR TIRE PRESSURE! [Re: accent2012]
GearheadTool Offline


Registered: 03/31/12
Posts: 1711
Loc: Boston, MA
Originally Posted By: accent2012
Maximum SAFE OPERATING pressure... you can inflate a tire to 50+ PSI and not blow on you... it's when you put on weight and use it is w hen the tire becomes unstable and blow. So, Max. Pressure on the sidewall = Max. SAFE pressure.

Max. Pressure label is intentional and is there to protect the consumer and the manufacturer.

Why would you intentionally fill a tire beyond the max. pressure rating on the sidewall?


I get scared when I put mine up to 40PSI as WAY too high but some pppl do that for extreme highway mileage. Just hope they never have to panic stop.

I usually get it to 36 cold 40 hot as an extreme high inflation. MOST tires I have found het 4PSI more when HOT.
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2000 Volvo V70 XC AWD - 138k mi. - SOLD! 2/16/03, Redline 0W-20

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#2740163 - 09/10/12 09:53 PM Re: CHECK YOUR TIRE PRESSURE! [Re: GearheadTool]
desmonsm Offline


Registered: 03/25/06
Posts: 127
Loc: Planet Earth
I had new Yokohama Avid Ascend's installed today at DT and they set the rear passenger side pressure to 60psi! Needless to say I'll be having a conversation with the Manager tomorrow morning!

My TSX calls for 32/30 but I like to keep them at 36/34.
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#2740230 - 09/10/12 11:28 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
moto94536 Offline


Registered: 06/21/10
Posts: 749
Loc: reno nv
I am glad you found it. 60 psi is really dangerous and could blow up the tire.
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2006 toyota camry v6. 334,000 miles. Mobil 1
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#2755590 - 09/26/12 07:07 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
ARB1977 Offline


Registered: 06/12/05
Posts: 4477
Loc: North Texas
The CRV recommends 30 psi. I fill them to 32 psi. The Taco recommends 26 front 29 rear, I fill them 34f 32r.
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#2755656 - 09/26/12 08:28 PM Re: CHECK YOUR TIRE PRESSURE! [Re: GearheadTool]
JHZR2 Offline



Registered: 12/14/02
Posts: 33617
Loc: New Jersey
Originally Posted By: GearheadTool
Originally Posted By: accent2012
Maximum SAFE OPERATING pressure... you can inflate a tire to 50+ PSI and not blow on you... it's when you put on weight and use it is w hen the tire becomes unstable and blow. So, Max. Pressure on the sidewall = Max. SAFE pressure.

Max. Pressure label is intentional and is there to protect the consumer and the manufacturer.

Why would you intentionally fill a tire beyond the max. pressure rating on the sidewall?


I get scared when I put mine up to 40PSI as WAY too high but some pppl do that for extreme highway mileage. Just hope they never have to panic stop.

I usually get it to 36 cold 40 hot as an extreme high inflation. MOST tires I have found het 4PSI more when HOT.


You realize that some cars spec over 40 psi, right? My Saab and BMW come to mind, and both have superior stopping performance to most any car on the road.

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#2757209 - 09/28/12 01:31 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
skyship Offline


Registered: 06/09/12
Posts: 2071
Loc: Tettnang, Baden-Wurttemberg, G...
UMM! Don't get high tyre pressures confused with braking performance. The best braking performance is when you use the recommended pressures in the worlds most under read book, the infamous and often lost, "Owners handbook".
The recommended pressures will vary with weight and max speed, but I can assure you that pumping up normal tyres from a recommended typical 30 psi to 40 psi will increase not decrease the required stopping distance.


Originally Posted By: JHZR2
Originally Posted By: GearheadTool
Originally Posted By: accent2012
Maximum SAFE OPERATING pressure... you can inflate a tire to 50+ PSI and not blow on you... it's when you put on weight and use it is w hen the tire becomes unstable and blow. So, Max. Pressure on the sidewall = Max. SAFE pressure.

Max. Pressure label is intentional and is there to protect the consumer and the manufacturer.

Why would you intentionally fill a tire beyond the max. pressure rating on the sidewall?


I get scared when I put mine up to 40PSI as WAY too high but some pppl do that for extreme highway mileage. Just hope they never have to panic stop.

I usually get it to 36 cold 40 hot as an extreme high inflation. MOST tires I have found het 4PSI more when HOT.


You realize that some cars spec over 40 psi, right? My Saab and BMW come to mind, and both have superior stopping performance to most any car on the road.

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#2791155 - 11/02/12 06:29 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
97tbird Offline


Registered: 05/09/03
Posts: 8362
Loc: Fayetteville, NC
I just got:

Accutire digital tire pressure gauge,
VIAIR 85P Portable Air Compressor, and a
Roadpro 12V Battery Clip-On and Cigarette Lighter Adapter smile

(didn't want to risk any blown fuses of cig lighter sockets, so with that last gadget I can hook up the compressor directly to the battery - works great)

Now all I want to do is check tire pressures... smile I should have done this years ago.
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#2798027 - 11/09/12 07:15 PM Re: CHECK YOUR TIRE PRESSURE! [Re: 97tbird]
Shark Offline


Registered: 08/26/09
Posts: 117
Loc: PA
I run my PSI so it's close to 50 when the tires are warm. I've done it in all my cars and have for years now. The max rated has always been above 50. It Improves MPG tremendously and wet performance.

Go on Ecomodder.com and some of you will have heart attacks when you see how common this is, and with no failures. The max rated PSI is there and like other ratings leaves a safety margin. To think tires will just explode filled below what the manufacturer says they're capable of holding isn't logical.

I know a woman filled her tires up all the way around and drove on it for a couple months before she complained that the car was riding funny since she put air in all her tires. The highest tire was 91psi and the lowest was 88.


Edited by Shark (11/09/12 07:17 PM)
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#2798270 - 11/10/12 05:22 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 14748
Loc: Sunny Florida
^^^I sure hope you are never in an accident and found at fault. A sharp attorney will cut you up for dinner like a prime steak!

The facts are indeed true that a tire will not explode even at considerably higher than rated pressures. We used to run bias ply tires at 60 psi during autocross events in the 60's.

But the hyper mile club is endangering themselves and others with this practice, as it dramatically affects the performance envelope of the car, especially in an emergency.
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Best ET-12.79 @ 111 mph
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#2798312 - 11/10/12 06:56 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
GearheadTool Offline


Registered: 03/31/12
Posts: 1711
Loc: Boston, MA
Originally Posted By: JHZR2
Originally Posted By: GearheadTool
Originally Posted By: accent2012
Maximum SAFE OPERATING pressure... you can inflate a tire to 50+ PSI and not blow on you... it's when you put on weight and use it is w hen the tire becomes unstable and blow. So, Max. Pressure on the sidewall = Max. SAFE pressure.

Max. Pressure label is intentional and is there to protect the consumer and the manufacturer.

Why would you intentionally fill a tire beyond the max. pressure rating on the sidewall?


I get scared when I put mine up to 40PSI as WAY too high but some pppl do that for extreme highway mileage. Just hope they never have to panic stop.

I usually get it to 36 cold 40 hot as an extreme high inflation. MOST tires I have found het 4PSI more when HOT.


You realize that some cars spec over 40 psi, right? My Saab and BMW come to mind, and both have superior stopping performance to most any car on the road.


I don't doubt that, just that that would be a first (for me.) I still have the tires at ~30-32PSI on the Volvo. Debating changing that to 33 all around...

I also had a BMW at one point, albeit much older than yours. I remember inflating to 36PSI cold as "wow, high" but for best fuel economy.. had concerns about overinflating. Bridgestone Potenza tires, I think.

I have also found just about every tire I have ever had to gain 4PSI hot, with the exception of a cheap General tire that inflated 5PSI once, though that was after a long day of extreme speed complete with a skidding stop. (Wild days.)

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#2801456 - 11/13/12 01:51 PM Re: CHECK YOUR TIRE PRESSURE! [Re: Shark]
CapriRacer Offline


Registered: 02/22/03
Posts: 2483
Loc: Somewhere in the US
Originally Posted By: Shark
........Go on Ecomodder.com and some of you will have heart attacks when you see how common this is, and with no failures........


I have been tracking this for a few years - mainly because I was told to put up or shut-up - that there were NO!! downsides and NOBODY had any issues whatsoever.

What I found was just the opposite. I have page after page of remarks that folks have made about issues with elevated inflation pressures from the very websites where no issues were claimed.

The fact is that there have been failures and there have been traction issues. It just difficult to assign this where it needs to be - because the guy analyzing the failure has confirmation bias.
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Visit my web site: www.BarrysTireTech.com

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#2802347 - 11/14/12 12:24 PM Re: CHECK YOUR TIRE PRESSURE! [Re: GearheadTool]
OVERKILL Offline


Registered: 04/28/08
Posts: 26102
Loc: Ontario, Canada
Originally Posted By: GearheadTool
Originally Posted By: JHZR2
Originally Posted By: GearheadTool
Originally Posted By: accent2012
Maximum SAFE OPERATING pressure... you can inflate a tire to 50+ PSI and not blow on you... it's when you put on weight and use it is w hen the tire becomes unstable and blow. So, Max. Pressure on the sidewall = Max. SAFE pressure.

Max. Pressure label is intentional and is there to protect the consumer and the manufacturer.

Why would you intentionally fill a tire beyond the max. pressure rating on the sidewall?


I get scared when I put mine up to 40PSI as WAY too high but some pppl do that for extreme highway mileage. Just hope they never have to panic stop.

I usually get it to 36 cold 40 hot as an extreme high inflation. MOST tires I have found het 4PSI more when HOT.


You realize that some cars spec over 40 psi, right? My Saab and BMW come to mind, and both have superior stopping performance to most any car on the road.


I don't doubt that, just that that would be a first (for me.) I still have the tires at ~30-32PSI on the Volvo. Debating changing that to 33 all around...

I also had a BMW at one point, albeit much older than yours. I remember inflating to 36PSI cold as "wow, high" but for best fuel economy.. had concerns about overinflating. Bridgestone Potenza tires, I think.

I have also found just about every tire I have ever had to gain 4PSI hot, with the exception of a cheap General tire that inflated 5PSI once, though that was after a long day of extreme speed complete with a skidding stop. (Wild days.)


Here's a novel idea, check the placard on the Volvo for the correct pressure, and use that.
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#2833478 - 12/13/12 08:43 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
teddyboy Offline


Registered: 01/18/10
Posts: 915
Loc: NC, United States
For the two Toyotas I go about 2 lbs over the recommendation on the door jam. The justification is that tires tend to lose air not gain it so there is a small margin. For the Volvo I go 1/2 to 1 lb above because 2 lbs over the 35 lbs recommended makes it ride like a buckboard.
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#2850116 - 12/28/12 03:28 AM Re: CHECK YOUR TIRE PRESSURE! [Re: Astro14]
bilibako2 Offline


Registered: 12/24/12
Posts: 28
Loc: illinois
At least twice a month.

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#2853194 - 12/31/12 12:23 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
loyd Offline


Registered: 08/30/12
Posts: 141
Loc: California
Here's a novel idea. Get your vehicle weighed. Front axle first then both axles. Then see what the tire manufacturer whose tires you are running recommends and use that pressure.


Edited by loyd (12/31/12 12:23 AM)

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#2853370 - 12/31/12 08:30 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 14748
Loc: Sunny Florida
Great advice for you perhaps.

Many others would do well to simply use the pressure recommendation written in their owners manual.
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

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#2853393 - 12/31/12 08:56 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
DBMaster Offline


Registered: 09/18/12
Posts: 2098
Loc: Texas
If you're math-oriented you could just use the published weight of your vehicle and divide it by the total of the maximum load stamped into the tire sidewall (sum of all four). Take the resulting fraction and multiply it by the maximum inflation pressure stamped on the tire sidewall. I did this a couple of times and found that the pressure obtained this way was very close to the recommended pressure on the door jamb.

This more or less assumes you are using tires that have the same or similar load rating than your OE tires.

Pretty cool, huh?
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#2859607 - 01/05/13 07:28 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
easytim Offline


Registered: 08/21/08
Posts: 147
Loc: New Mexico


I use these, $2.00 each they are very well made, they are set for 40lb's 40lb might be a little high but the car handles better overall and I like the idea of getting better gas mileage.

Just a walk around the car to make sure they are all reading green, its simple


Edited by easytim (01/05/13 07:40 PM)

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#2859620 - 01/05/13 07:44 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
easytim Offline


Registered: 08/21/08
Posts: 147
Loc: New Mexico
Heres the tire I'm putting 40lb of air in these tires. The MAX amount of air is stated on the tire 44 P.S.I.

http://wot.motortrend.com/pennies-on-the...l#axzz2H9knXDXP


Edited by easytim (01/05/13 07:58 PM)

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#2859700 - 01/05/13 08:49 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
HerrStig Offline


Registered: 08/24/11
Posts: 2929
Loc: Boston, MA
Going to the high end on tire pressure maght make your sedan handle like a gokart on smooth roads (or seem like it, anyway) but in the frozen north the wear and tear on suspension parts and wheel bearings comes back to haunt pretty quickly especially with 60 and down series tires. I do a little autocrossing , and I run wide alloy rims with tires to match, Koni struts, and a front strut tower bar and stiffer bushings in the suspesnion links, but I don't see much payback from going over 36 pounds in the tires. . It's all about tire footprint, IS the tire FLAT on the road from tread edge to tread edge? The racer guys use a tread temp gauge to measure across the tread looking for hot spots. Harder to do on the street, you have to resort to looking at wear patterns instead. I have always understood the max tire pressures were for carrying a lot of people and luggage, on a lot summer day, at high speed, not keeping the tires of an unloaded car in contact with a bumpy road. Some IRS layouts introduce quite a bit of camber, overinflate the rear tires and the inside edges wear real fast.

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#2861499 - 01/07/13 01:14 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
alex3686 Offline


Registered: 01/07/13
Posts: 63
Loc: Florida
I check mine every few days because my left front drivers side tire is always leaking air out of em I WOULD NEVER GET DUNLOPS again.

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#2873166 - 01/16/13 03:30 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Miller88 Offline


Registered: 04/09/08
Posts: 6494
Loc: Onondaga County
Between my two vehicles, I have 4 sets of tires. The recaps and factory tires on the focus do not leak. One of the winterforce tires on my car leaks a few PSI a week, and one of the AT tires on my Cherokee leaks about 10PSI a weeek (if not driven) or none if driven.



Edited by Miller88 (01/16/13 03:33 PM)
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#2873241 - 01/16/13 04:40 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
KitaCam Offline


Registered: 11/16/12
Posts: 1509
Loc: SunnySouthFlorida
Check newly mounted tires checked every few days to reconfirm asked-for pressure and to make sure there's no loss when mounting liquid brushed on the tires dries...

Then every two weeks....

On the Kitacam (LE/4cyl) F/R are above recommended 29psi...
Front 33, just enough to eliminate squealing on tight turns...
Rear 34 to get the rear end out and around the turn "more quickly"...


Edited by KitaCam (01/16/13 04:42 PM)
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#2873983 - 01/17/13 09:51 AM Re: CHECK YOUR TIRE PRESSURE! [Re: DBMaster]
CapriRacer Offline


Registered: 02/22/03
Posts: 2483
Loc: Somewhere in the US
Originally Posted By: DBMaster
If you're math-oriented you could just use the published weight of your vehicle and divide it by the total of the maximum load stamped into the tire sidewall (sum of all four). Take the resulting fraction and multiply it by the maximum inflation pressure stamped on the tire sidewall. I did this a couple of times and found that the pressure obtained this way was very close to the recommended pressure on the door jamb.

This more or less assumes you are using tires that have the same or similar load rating than your OE tires.

Pretty cool, huh?


Pretty wrong.

First, it assumes the weight on your tires is the same all around - OR - if you use the GAWR's, it assumes the there is no difference side to side.

Also, it assumes that the maximum pressure is where the maximum load occurs - which is not always true.

It also assumes that tires should be inflated right up to the minimum pressure needed to carry the load.

Al in all, not well thought out.
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#2874167 - 01/17/13 12:27 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
DBMaster Offline


Registered: 09/18/12
Posts: 2098
Loc: Texas
To quote Steve Martin, "Well, excuuuuse me!"
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#2923857 - 02/28/13 09:27 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
ARB1977 Offline


Registered: 06/12/05
Posts: 4477
Loc: North Texas
My tacoma recommends 26F 29R. I run 36 34 winter and 34 32 summer.
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#2934517 - 03/10/13 05:04 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
KitaCam Offline


Registered: 11/16/12
Posts: 1509
Loc: SunnySouthFlorida
Kitacamry has gotten to like 20% more PSI than its door jam recommendation...35 vs 29

This past few weeks the air temps have dropped from mid 80s to low 50s resulting in a drop of 2 PSI cold tire readings...
...something southern auto-owners should be aware of...especially if their tire PSI is at door jam setting.


Edited by KitaCam (03/10/13 05:04 PM)
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#2948826 - 03/23/13 01:39 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
gregoron Offline


Registered: 11/08/12
Posts: 488
Loc: Hawaii
Every month I have mine checked and topped up with nitrogen at Costco where I bought the tires.
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#2955392 - 03/29/13 11:09 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
SOHCman Offline


Registered: 03/29/10
Posts: 844
Loc: Indiana
Just checked a friends tire pressure before they took a trip, 45 psi all the way around!?!?!?!?!? G6 calls for 32/30 on the 18 inch tires. He said no wonder it was handling and riding so terribly. DONT TRUST THE SHOP GUY! In the words or Regan, trust but verify.
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#2959916 - 04/02/13 12:40 PM Re: CHECK YOUR TIRE PRESSURE! [Re: SteveSRT8]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 1690
Loc: Houston, Texas
Originally Posted By: SteveSRT8
Originally Posted By: Jim Allen
I also find the Michelin winter tires on the truck (year round Michelins on the Honda) have much better liners and don't lose much air.


This is my experience with our E rated truck tires. Most are now running the new LTX MS2 style and they simply do not leak air at all. It's another small plus for Michelin quality control.


Yeah same here. I just look at them now. I got tired of checking the air pressure only to find that I wasted my time.
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#2960138 - 04/02/13 03:53 PM Re: CHECK YOUR TIRE PRESSURE! [Re: motor_oil_madman]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 14748
Loc: Sunny Florida
Originally Posted By: motor_oil_madman
Originally Posted By: SteveSRT8
Originally Posted By: Jim Allen
I also find the Michelin winter tires on the truck (year round Michelins on the Honda) have much better liners and don't lose much air.


This is my experience with our E rated truck tires. Most are now running the new LTX MS2 style and they simply do not leak air at all. It's another small plus for Michelin quality control.


Yeah same here. I just look at them now. I got tired of checking the air pressure only to find that I wasted my time.


Yep. Our new truck has bridgestones but has TPMS also so we can keep track of the poor tires!
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#2971846 - 04/13/13 08:08 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
mclasser Offline


Registered: 04/13/13
Posts: 378
Loc: DC
I typically run 2-2.5 PSI higher than what's written on the door jamb. With the high temps. we had last week, all my cars had the roughest, bumpiest ride ever since the tire pressures shot up an additional 3-4 psi with the heat! I had to adjust everything so the rides would return to normal again.


Edited by mclasser (04/13/13 08:08 PM)
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#2998147 - 05/10/13 09:01 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Durango Offline


Registered: 02/15/07
Posts: 2038
Loc: Los Angeles, California
Originally Posted By: JHZR2
Tis the season, temperature dropping.

Depending upon how your TPMS is set, you might loose 10+ psi before it alerts you! Thats a lot of air in a low profile tire like many cars have these days.

And of course cars without TPMS need to be watched because you just dont know.

With it getng colder, we can see some pretty big fluctuation. Some cold morning, before too long, go out and check the pressure!



JHZRa,

My TPMS is off by about 3 pounds so like you said my tires are toast before I'm alerted! I check my tire pressure once per month and adjust it to the cars recommended pressure.

Since I do this I basically ignore my TPMS system. Is there a way to reset to show a more accurate panel reading? I have an 08' Impala SS.

Durango

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#3037913 - 06/18/13 11:44 PM Re: CHECK YOUR TIRE PRESSURE! [Re: Astro14]
LTZ10 Offline


Registered: 01/21/12
Posts: 35
Loc: Raleigh, NC
Originally Posted By: Astro14
Am I the only one who checks it monthly, or before a road trip, regardless of season?


Every other week at night when the tires are cool.
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#3093056 - 08/12/13 01:12 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
The Critic Offline


Registered: 08/30/04
Posts: 17698
Loc: Walnut Creek, CA
On the cars that I service, I fill them COLD and inflate them to 3psi over the OEM recommended pressure or 35 psi, whichever is higher.

Usually, this is enough to keep the tires at or near the recommended inflation pressure until it comes back for its next service visit.

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#3114418 - 09/04/13 09:32 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
webfors Offline


Registered: 06/06/06
Posts: 3641
Loc: Ottawa
Thanks for the reminder! I use to check them much more frequently.
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#3114450 - 09/04/13 10:02 AM Re: CHECK YOUR TIRE PRESSURE! [Re: The Critic]
bornconfuzd Offline


Registered: 03/24/10
Posts: 175
Loc: Houston
Thanks Critic for validating something I've been doing for years but never actually asked anyone to see if they agreed.

Didn't want to sound dumb I guess. :-)
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#3151833 - 10/10/13 10:50 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
cutlassvillager Offline


Registered: 08/03/10
Posts: 207
Loc: Michigan
I have to admit I have gotten lazy checking my tire pressures lately as they were never changing. Recently my car has been shifting a lot (not pulling through the steering wheel - felt like the whole car was moving left and right) on a certain stretch of road that had a lot of tar lines. It is very similar to this, but a little heavier on the tar:


I just figured it was a combination of wide-ish summer low profile tires and alignment being out of spec (even though nothing else about the way it drives leaves me to believe alignment would be out). I checked my pressures and all of the tires were consistently 3 psi below the door card. I upped them back to proper spec and the shifting has diminished greatly. It used to annoy me to the point where I would avoid the road and it felt somewhat dangerous. At its worst the upper half of my body would sway a little. I was surprised that changing the pressure made such a big difference! I felt this story was worthy of this thread....check your pressures! An annoying issue might be something simple.
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#3195436 - 11/23/13 07:47 AM Re: CHECK YOUR TIRE PRESSURE! [Re: hypervish]
KimikoYuuki Offline


Registered: 11/22/13
Posts: 6
Loc: Osaka Japan
I run 40 psi nitrogen in mine. On my 04 Taurus SES, went to. 225/60/16 also. With all of the sharp high speed turns I have to do around here, Anything less than 40psi makes the tires roll on their sidewalls excessively and screams like a angy hawk.

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#3197018 - 11/24/13 07:44 PM Re: CHECK YOUR TIRE PRESSURE! [Re: KimikoYuuki]
gaijinnv Offline


Registered: 02/14/13
Posts: 233
Loc: Nevada, USA
Originally Posted By: KimikoYuuki
I run 40 psi nitrogen in mine. On my 04 Taurus SES, went to. 225/60/16 also. With all of the sharp high speed turns I have to do around here, Anything less than 40psi makes the tires roll on their sidewalls excessively and screams like a angy hawk.


Takenokozoku?

crazy

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#3198822 - 11/26/13 03:05 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
coopns Offline


Registered: 02/16/05
Posts: 643
Loc: Scituate MA
Way home today I said to myself, haven't check the tires in a year. Lo and behold, one was a 12, others were all low. Wondering why gas milage was a bit low.
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#3224154 - 12/21/13 10:13 PM Re: CHECK YOUR TIRE PRESSURE! [Re: KimikoYuuki]
Subdued Offline


Registered: 10/06/13
Posts: 282
Loc: Youngstown, NY
I run 35 PSI of 80% nitrogen, 16% Oxygen, and 4% a mix of other stuff in my Yaris.

Seems to hold up pretty well.

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#3226205 - 12/24/13 06:58 AM Re: CHECK YOUR TIRE PRESSURE! [Re: Subdued]
JetStar Offline


Registered: 10/02/08
Posts: 839
Loc: Flatlands of Indiana
I find it amazing how may people that I know, don't check their tire pressure regularly, including motorcycles. I guess that's how we end up with TPMS. What floors me is that my Son is one of them, and he certainly was NOT taught that way.
BTW I noticed the tires on my Tacoma are wearing a bit in the center when I rotated them this weekend, factory Dunlops with 30 PSI on the placard and 30K on the tires. I think I'll drop the pressure a bit.
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#3243028 - 01/09/14 04:09 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Benzadmiral Offline


Registered: 10/12/05
Posts: 3611
Loc: New Orleans
Ever since I got a plug-in tire pump as a gift, I make sure to check my tires every month or so, and before a trip. On the Park Avenue, which called for 32 all around, I usually aimed for a compromise between ride quality and better economy, and ran 33-34 most of the time, 35 if I knew I'd be on a sustained highway run. The '11 Regal calls for 33 all around. One menu has an LCD display of the pressure at each tire. So far they've been reading 37-38 -- but that's after a half-hour drive or more.

I'll check it this afternoon before I leave work, when the tires have been sitting, and then compare that to what I actually read with the pencil gauge on Saturday morning.
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('11 Buick Regal CXL, charcoal/cream, 2.4L NA)

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#3258233 - 01/24/14 05:31 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
KitaCam Offline


Registered: 11/16/12
Posts: 1509
Loc: SunnySouthFlorida
Since getting 17" rims and performance tires, Hankook Ventus V4 ES, I've been running 40psi and a bit more as I figure out the best settings for the Camry, a jump from 35 I had been running in 15 inch "OEM" type tires...this vs. 29 on the doorjamb...

As high as this is, it seems to be the right settings for greater traction/wear/and mpg. With cold temps this month in Florida following last month, Dec., the hottest on record here, I've had to keep an eye on them...


Edited by KitaCam (01/24/14 05:34 AM)
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#3347520 - 04/19/14 04:43 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
Benzadmiral Offline


Registered: 10/12/05
Posts: 3611
Loc: New Orleans
For those of you who even have a compact spare:

Check the pressure in it. The Buick dealer's pre-printed 172-point checklist sheet mentions the other tires, but not the spare. Just now I unpacked the trunk, levered up the floor panel, and gauge-checked my spare. It was 18.5 psi, and it's supposed to be 60! My Sears inflator was getting a little hot by the time I finished pumping 48 pounds into the tire.

'Twould be embarrassing, to say the least, if I got a flat on the road somewhere, unshipped the spare, and found it dead flabby, no? (Yes, I have a can of the Fix-a-Flat stuff . . . but I've never used it. Ounce, prevention, cure, you know the drill.)

I will give Buick/Opel full credit: The spare is stowed with the valve uppermost, so you don't have to take the tire out and flip it over to check the pressure. I had to do that every year on the Park Avenue; annoying, to say the least. . . .
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#3348679 - 04/20/14 10:53 PM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
GoStumpy Offline


Registered: 04/18/14
Posts: 42
Loc: BC, Canada
I'm running 35psi vs the 29 recommended in the doorjamb... I think they recommend 29 just for the cushy ride...
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#3356396 - 04/29/14 04:46 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
pitts64 Offline


Registered: 09/07/06
Posts: 21
Loc: Pittsburgh, Pa
My 64 Bonneville likes 39.. The tires are West Lake SU307 235/70r15... I removed all rubber bushings from the control arms, spherical in the back, Delrin/Nylon in the front...

The roads in Western Pennsylvania are like a demanding road course..


Edited by pitts64 (04/29/14 04:48 AM)

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#3409971 - 06/29/14 12:08 PM Re: CHECK YOUR TIRE PRESSURE! [Re: Prelude]
geeman789 Offline


Registered: 04/13/14
Posts: 172
Loc: Alberta, Canada
Originally Posted By: Prelude
I find it excessive to check the pressure once a month unless there is a problem. The pressure in my tires doesn't change much even after 3 month...


How do you know there is in fact a problem if you never check....!?!?

I check pressure once a week, every weekend. I also check oil, coolant, ps levels, and top up washer fluid.

My tire pressure checks have a number of times gone like this...

35 35 35 35 21.... what the ...!

Picked up a screw... leaking a couple psi per day, no big deal... and no flat on the side of the freeway...or worse!

It takes all of about 2 MINUTES to check four tires ... excessive, umm, no...

Good preventative maintenance is how I prefer to look at it.

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#3415851 - 07/06/14 06:31 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
sprintman Offline


Registered: 05/27/02
Posts: 11006
Loc: Canberra ACT Australia
40-42 psi bottled nitrogen. It varies very little when I drop in for a check.

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#3415890 - 07/06/14 07:55 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 14748
Loc: Sunny Florida
^^^That figures.

Why don't you just tell us all about "Nitro" and it's innate superiority...
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

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#3415891 - 07/06/14 07:56 AM Re: CHECK YOUR TIRE PRESSURE! [Re: pitts64]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 14748
Loc: Sunny Florida
Originally Posted By: pitts64
My 64 Bonneville likes 39.. The tires are West Lake SU307 235/70r15... I removed all rubber bushings from the control arms, spherical in the back, Delrin/Nylon in the front...

The roads in Western Pennsylvania are like a demanding road course..


NICE! I had a gorgeous 63, one of my best memories....
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

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#3480778 - 09/12/14 08:57 AM Re: CHECK YOUR TIRE PRESSURE! [Re: JHZR2]
ZachMcgowan Offline


Registered: 09/06/14
Posts: 7
Loc: El Paso, TX
This is the reason why I decided to buy a Digital Tire Gauge from Mountaincrest a month ago because of some big fluctuations in my TPMS. Just making sure everything is working out well while I'm driving off to some great distances.

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#3480845 - 09/12/14 10:03 AM Re: CHECK YOUR TIRE PRESSURE! [Re: ZachMcgowan]
leeharvey418 Offline


Registered: 08/05/11
Posts: 547
Loc: Southeast Michigan
Originally Posted By: ZachMcgowan
This is the reason why I decided to buy a Digital Tire Gauge from Mountaincrest a month ago because of some big fluctuations in my TPMS. Just making sure everything is working out well while I'm driving off to some great distances.

Wow, Zach... you sure do like your Mountaincrest Digital Tire Gauge.
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