30 lbs when cold.
30 is what is on label and ride does not get stiffer as it would be at 35 PSI.
Correct Tire Pressure
Team Owner
Joined: Oct 2004
Posts: 27,420
Likes: 64
From: San Clemente CA
Team Owner
Joined: Dec 2002
Posts: 32,074
Likes: 296
From: San Francisco CA
Race Director
Joined: Oct 2005
Posts: 14,999
Likes: 200
From: Bay Area Ca.
Seems as if most tire shops put in 35 lbs. Where this number came from I have no idea.
My 96 4 Runner door label states 29 lbs. just for a comparison.
I always tell them what pressure I want and will check it the next morning. Funny how more times than not over the years using different shops it will read 35lbs. No matter what I tell them.....
Idiots for not reading the door jamb and for not reading the service write up.
Good conscious workers are hard to find I guess.
My 96 4 Runner door label states 29 lbs. just for a comparison.
I always tell them what pressure I want and will check it the next morning. Funny how more times than not over the years using different shops it will read 35lbs. No matter what I tell them.....
Idiots for not reading the door jamb and for not reading the service write up.
Good conscious workers are hard to find I guess.
Drifting
Joined: Feb 2010
Posts: 1,527
Likes: 34
Local Costco uses Nitrogen, I bought tires for the Vette and another car from Costco. When I do need to adjust the Nitrogen, which is like twice a year, I bring my own tire gauge and Costco let me do my own air fill.
My other car with non oem tires - I do my own natural air check/fill every two weeks at home.
Higher tire air pressure is for improve economy. I suppose tire shops doing it as a norm due to common demands and maybe think they are doing you a favor.
I bump mine up 3 psi with nitrogen fills. And natural air fill, up 6 psi from door jam spec. All my tires wear well and more response in general - try it, maybe you'll like it.
My other car with non oem tires - I do my own natural air check/fill every two weeks at home.
Higher tire air pressure is for improve economy. I suppose tire shops doing it as a norm due to common demands and maybe think they are doing you a favor.
I bump mine up 3 psi with nitrogen fills. And natural air fill, up 6 psi from door jam spec. All my tires wear well and more response in general - try it, maybe you'll like it.
Melting Slicks
Joined: Nov 2007
Posts: 2,278
Likes: 550
From: Pittsburgh PA
St. Jude Donor '10-'11-'12-'13-'14
I've noticed this too. No matter the car, no matter the tire, no matter the shop - they always get 35 psi. Must be the universal default when not bothering to check what's called for.
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Race Director
Joined: Mar 2005
Posts: 11,549
Likes: 27
From: Southampton NJ
I found with the run-flats 24lbs hot front and rear to be the best for traction. it produced a softer ride, tire tread was good even at 16,000 miles. it also gave me a heads up of when to step on the throttle as the low tire pressure warning was on the DIC, once they warmed to 24lbs you could give it so throttle
Drifting
Joined: Feb 2010
Posts: 1,527
Likes: 34
I don't race in a straight line but I do like driving thru many of our local "secret" challenging mountain roads. I do not want my sidewalls to flex unnecessary thru the curves. 3 psi provides less rolling resistance, responds well for me and without abnormal wear. Better mileage with higher pressure was not my objective - after all, my getting a Vette was not for gas mileage but just the additional perk comes with higher pressure.
I am annal, to ensure pressure accuracy to maintain performance and duriability, I use combinations of TPMS tool to take reading off the TPMS sensors, cross reference with DIC and if adjustment is necessary, use dial tire gauge (I have two, so if in doubt, I can verify each other) to finalize.
Everything I do is like these, its a sickness - 39 years of Nuke Power work did me in.
I am annal, to ensure pressure accuracy to maintain performance and duriability, I use combinations of TPMS tool to take reading off the TPMS sensors, cross reference with DIC and if adjustment is necessary, use dial tire gauge (I have two, so if in doubt, I can verify each other) to finalize.
Everything I do is like these, its a sickness - 39 years of Nuke Power work did me in.
Thread Starter
Intermediate
Joined: Jun 2006
Posts: 49
Likes: 0
From: New Orleans LA.
Thanks for all the info, I ran 35lbs on a 400 mile weekend trip, Great Ride and Great MPG...When I bought the Tires and Rims the Pressure was 41lbs and the ride was bad...Thanks Again, Bob
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Local Costco uses Nitrogen, I bought tires for the Vette and another car from Costco. When I do need to adjust the Nitrogen, which is like twice a year, I bring my own tire gauge and Costco let me do my own air fill.
My other car with non oem tires - I do my own natural air check/fill every two weeks at home.
Higher tire air pressure is for improve economy. I suppose tire shops doing it as a norm due to common demands and maybe think they are doing you a favor.
I bump mine up 3 psi with nitrogen fills. And natural air fill, up 6 psi from door jam spec. All my tires wear well and more response in general - try it, maybe you'll like it.
My other car with non oem tires - I do my own natural air check/fill every two weeks at home.
Higher tire air pressure is for improve economy. I suppose tire shops doing it as a norm due to common demands and maybe think they are doing you a favor.
I bump mine up 3 psi with nitrogen fills. And natural air fill, up 6 psi from door jam spec. All my tires wear well and more response in general - try it, maybe you'll like it.
Drifting
Joined: Feb 2010
Posts: 1,527
Likes: 34
Tech Contributor
Joined: Oct 1999
Posts: 41,037
Likes: 9,801
From: Charlotte, NC (formerly Endicott, NY)
Seems as if most tire shops put in 35 lbs. Where this number came from I have no idea.
My 96 4 Runner door label states 29 lbs. just for a comparison.
I always tell them what pressure I want and will check it the next morning. Funny how more times than not over the years using different shops it will read 35lbs. No matter what I tell them.....
Idiots for not reading the door jamb and for not reading the service write up.
Good conscious workers are hard to find I guess.
My 96 4 Runner door label states 29 lbs. just for a comparison.
I always tell them what pressure I want and will check it the next morning. Funny how more times than not over the years using different shops it will read 35lbs. No matter what I tell them.....
Idiots for not reading the door jamb and for not reading the service write up.
Good conscious workers are hard to find I guess.
Bill