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Tire Pressure #5066312
04/06/19 05:47 PM
04/06/19 05:47 PM
Joined: Sep 2005
Posts: 6,415
MIchigan
Warstud Offline OP
Warstud  Offline OP

Joined: Sep 2005
Posts: 6,415
MIchigan
I know your suppose to go by the placard but this the second time now that a co-worker has told me they fill it to the max pressure. Does any here fill it to the max for normal driving?

Re: Tire Pressure [Re: Warstud] #5066325
04/06/19 06:02 PM
04/06/19 06:02 PM
Joined: Jun 2016
Posts: 4,672
MN
oil_film_movies Offline
oil_film_movies  Offline

Joined: Jun 2016
Posts: 4,672
MN

Re: Tire Pressure [Re: Warstud] #5066330
04/06/19 06:05 PM
04/06/19 06:05 PM
Joined: Jan 2018
Posts: 1,196
San Antonio, TX
das_peikko Offline
das_peikko  Offline

Joined: Jan 2018
Posts: 1,196
San Antonio, TX
My car's placard says 33 PSI. The tire manufacturer says 44 PSI at max load. From my experience, 40 PSI is perfect!

I use to run 35 PSI all the time, but 40 PSI sure tightens the car up! smile

Re: Tire Pressure [Re: Warstud] #5066333
04/06/19 06:08 PM
04/06/19 06:08 PM
Joined: Aug 2018
Posts: 525
Georgia
RDY4WAR Offline
RDY4WAR  Offline

Joined: Aug 2018
Posts: 525
Georgia
It was discussed very recently in great detail.

My placard says 30 psi. Max tire pressure is 44 psi. I run 40 psi. The ride is much better, and I haven't observed any abnormal wear.


"He who is without oil, shall throw the first rod." - Compressions 9:1
Re: Tire Pressure [Re: RDY4WAR] #5066345
04/06/19 06:24 PM
04/06/19 06:24 PM
Joined: Mar 2015
Posts: 6,033
Glendale, Arizona
billt460 Offline
billt460  Offline

Joined: Mar 2015
Posts: 6,033
Glendale, Arizona
Originally Posted by das_peikko
My car's placard says 33 PSI. The tire manufacturer says 44 PSI at max load. From my experience, 40 PSI is perfect!

I use to run 35 PSI all the time, but 40 PSI sure tightens the car up!


Originally Posted by RDY4WAR
My placard says 30 psi. Max tire pressure is 44 psi. I run 40 psi. The ride is much better, and I haven't observed any abnormal wear.

That's what I run as well. 40 to 42 PSI.

Re: Tire Pressure [Re: Warstud] #5066354
04/06/19 06:37 PM
04/06/19 06:37 PM
Joined: Feb 2013
Posts: 11,540
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline

Joined: Feb 2013
Posts: 11,540
Phoenix, AZ
I run a little over too. Gives me some buffer room if I forget to check it for a month or two. I think my Sonata wants 33 and I always put in 37.


2015 Hyundai Sonata 2.4L 97k STP Synthetic HM 10w30 & OEM
2000 Toyota Camry 2.2L 234k Mobil Super HM 10w40 & Fram Ultra
1996 Jeep Cherokee 4.0L 149k Mobil 1 HM 10w40 & Fram Ultra
Re: Tire Pressure [Re: Warstud] #5066359
04/06/19 06:41 PM
04/06/19 06:41 PM
Joined: Apr 2008
Posts: 40,002
Ontario, Canada
OVERKILL Offline
OVERKILL  Offline

Joined: Apr 2008
Posts: 40,002
Ontario, Canada
I run the placcard pressure, that's what the OEM tested and arrived at. The tire manufacturer has no idea what vehicle the tire is going on, they simply state the pressure at which the maximum weight rating of the tire is achieved, which is likely wholly irrelevant to the vast majority of vehicles the tire is a proper fit for.


2019 RAM 1500 Sport - Mobil 1 EP 0w-20, FRAM Ultra
2016 Grand Cherokee SRT - Ravenol SSL 0w-40, FRAM Ultra
Re: Tire Pressure [Re: Warstud] #5066362
04/06/19 06:42 PM
04/06/19 06:42 PM
Joined: Apr 2017
Posts: 1,550
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline

Joined: Apr 2017
Posts: 1,550
Ontario, Canada
Guess I am an anomaly. My car calls for 35 front, 42 rear. I run 33 front, 35 rear. The lower the pressure, the larger the contact patch, the more grip you have*.

*up to a point.


Mighty Mouse Tech
BMW Diagnostic and Alignment Tech
2010 Civic Si Motul 0W40, Redline MTL
2013 BMW 135i M Sport Edition Motul 0W40, Redline MTL
Re: Tire Pressure [Re: OVERKILL] #5066364
04/06/19 06:44 PM
04/06/19 06:44 PM
Joined: Nov 2012
Posts: 684
Ajax,Ontario, Canada
Pelican Offline
Pelican  Offline

Joined: Nov 2012
Posts: 684
Ajax,Ontario, Canada
Originally Posted by OVERKILL
I run the placcard pressure, that's what the OEM tested and arrived at. The tire manufacturer has no idea what vehicle the tire is going on, they simply state the pressure at which the maximum weight rating of the tire is achieved, which is likely wholly irrelevant to the vast majority of vehicles the tire is a proper fit for.


Dead Right !

Re: Tire Pressure [Re: Warstud] #5066367
04/06/19 06:50 PM
04/06/19 06:50 PM
Joined: Sep 2004
Posts: 8,233
Marshfield , MA
andyd Offline
andyd  Offline

Joined: Sep 2004
Posts: 8,233
Marshfield , MA
Door post says 35 on Camrys. I run 40 to keep TPSM light off. It is more of nag ware than nanny ware. grin2


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: Tire Pressure [Re: Warstud] #5066373
04/06/19 07:01 PM
04/06/19 07:01 PM
Joined: May 2002
Posts: 2,164
St. Charles County, Missouri
csandste Offline
csandste  Offline

Joined: May 2002
Posts: 2,164
St. Charles County, Missouri
Early December oil change: getting colder, set to 38
Late March oil change: getting warmer, set to 35


2017 Kia Soul Plus-- Super Tech Synthetic 5w30 59000 miles
Re: Tire Pressure [Re: OVERKILL] #5066392
04/06/19 07:25 PM
04/06/19 07:25 PM
Joined: Dec 2009
Posts: 27,660
Regina, Saskatchewan, Canada
Garak Offline
Garak  Offline

Joined: Dec 2009
Posts: 27,660
Regina, Saskatchewan, Canada
Originally Posted by OVERKILL
I run the placcard pressure, that's what the OEM tested and arrived at.

Same. The only one that gave any latitude about pressures was the Audi (and other German makes seem to do that) depending upon expected payload and/or speeds. Actually, in the winter, I add a few pounds to the G37 in the garage. It's supposed to be 33 psi cold. The garage is 10 C minimum in winter. I set it to 33 psi at 10 C and then go outside when it's -30 C, I'll have a TPMS warning in under one kilometre of driving. So, I set it at something like 36 or 37 psi for the bad part of the year (eight months I guess. wink ).


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Tire Pressure [Re: Garak] #5066408
04/06/19 07:47 PM
04/06/19 07:47 PM
Joined: Apr 2008
Posts: 40,002
Ontario, Canada
OVERKILL Offline
OVERKILL  Offline

Joined: Apr 2008
Posts: 40,002
Ontario, Canada
Originally Posted by Garak
Originally Posted by OVERKILL
I run the placcard pressure, that's what the OEM tested and arrived at.

Same. The only one that gave any latitude about pressures was the Audi (and other German makes seem to do that) depending upon expected payload and/or speeds. Actually, in the winter, I add a few pounds to the G37 in the garage. It's supposed to be 33 psi cold. The garage is 10 C minimum in winter. I set it to 33 psi at 10 C and then go outside when it's -30 C, I'll have a TPMS warning in under one kilometre of driving. So, I set it at something like 36 or 37 psi for the bad part of the year (eight months I guess. wink ).


Yes, my BMW was like that, had a variety of pressures depending on anticipated operating speed and load. None of those pressures approached sidewall though LOL


2019 RAM 1500 Sport - Mobil 1 EP 0w-20, FRAM Ultra
2016 Grand Cherokee SRT - Ravenol SSL 0w-40, FRAM Ultra
Re: Tire Pressure [Re: Garak] #5066411
04/06/19 07:49 PM
04/06/19 07:49 PM
Joined: Apr 2014
Posts: 898
Western Canada
geeman789 Offline
geeman789  Offline

Joined: Apr 2014
Posts: 898
Western Canada
Originally Posted by Garak

... The garage is 10 C minimum in winter. I set it to 33 psi at 10 C and then go outside when it's -30 C, I'll have a TPMS warning in under one kilometre of driving. So, I set it at something like 36 or 37 psi for the bad part of the year (eight months I guess. wink ).


Pressure drop is roughly 1 psi per 1 * C ... with a 40*C differential, you should be up at 41 psi garage pressure . At 36 psi garage, you are likely around 28 or 29 psi ambient. TPMS typically triggers at 25 % below recommended pressure, so about 26 psi.


2011 SUBARU Impreza 5-door manual / 2016 HONDA Pilot / 2011 MAZDA 2 auto
Re: Tire Pressure [Re: Warstud] #5066426
04/06/19 08:05 PM
04/06/19 08:05 PM
Joined: Jul 2005
Posts: 11,743
Maricopa Arizona
dave1251 Offline
dave1251  Offline

Joined: Jul 2005
Posts: 11,743
Maricopa Arizona
35 on the placard I run it 40-42 PSI.


make the inside of your engine oil cap white.
don't use.
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