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Tire Pressure #5066312 04/06/19 05:47 PM
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Warstud Offline OP
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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
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oil_film_movies Offline
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Re: Tire Pressure [Re: Warstud] #5066330 04/06/19 06:05 PM
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das_peikko Offline
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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
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RDY4WAR Offline
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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
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billt460 Online Content
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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
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Nick1994 Offline
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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 103k STP Synthetic HM 10w30 & OEM
2000 Toyota Camry 2.2L 235k 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
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OVERKILL Offline
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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
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mightymousetech Offline
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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
2013 BMW 135i M Sport Edition Motul 0W40, MTL/MT-LV
2010 BMW 328i X-Drive, Castrol 0W40, MT-LV
Re: Tire Pressure [Re: OVERKILL] #5066364 04/06/19 06:44 PM
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Pelican Offline
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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
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andyd Offline
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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
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csandste Offline
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Early December oil change: getting colder, set to 38
Late March oil change: getting warmer, set to 35


2017 Kia Soul Plus-- VWB 5w30 (+ Harvest King Syn) 68,500 miles
Re: Tire Pressure [Re: OVERKILL] #5066392 04/06/19 07:25 PM
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Garak Offline
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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
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OVERKILL Offline
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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
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geeman789 Offline
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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
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dave1251 Offline
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35 on the placard I run it 40-42 PSI.


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