Tire pressure?
Thread Starter
Drifting
Joined: Sep 2007
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From: Forest Hill, (Out in the country), north of Baltimore. Maryland. Land of "Pleasant Living" with my Corvette, steamed crabs & crab cakes.
Tire pressure?
I have an 08 A6 coupe with Goodyears. I try to keep the air pressure at 32lbs. What is the recommended air pressure? How often should I check the air pressure? Does it matter that in Maryland it is starting to get colder? 
Last edited by VetteManRay; Nov 18, 2007 at 07:14 PM. Reason: update
Team Owner
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From: McKinney TX
St. Jude Donor '21-'22-'23-'24
The sticker on the driver's door jamb says 30 lbs. Since tire pressure goes down about 1 psi for every 10 deg. drop in temp., I usually add air to mine about 2 or 3 times during the winter so they stay at 30 lbs. when cold.
I'd check the press. via the DIC about once a week, again an extra time when the temps drop much to stay.
I'd check the press. via the DIC about once a week, again an extra time when the temps drop much to stay.
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St. Jude Donor '05-'06-'07-'10
The sticker on the driver's door jamb says 30 lbs. Since tire pressure goes down about 1 psi for every 10 deg. drop in temp., I usually add air to mine about 2 or 3 times during the winter so they stay at 30 lbs. when cold.
I'd check the press. via the DIC about once a week, again an extra time when the temps drop much to stay.
I'd check the press. via the DIC about once a week, again an extra time when the temps drop much to stay.
You should keep your tires at 30 psi cold.
Tire pressure will drop approximately 1 pound for each 10 degree drop in temperature. It will inversly raise approximately 1 pound for each 10 degree rise in temperature. If you check your tires in the afternoon sun one day and fill them to 30 psi and then overnight the temperature drops 20 degrees they will be down about two pounds when you check them in the morning
Instructor
Joined: Apr 2007
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From: Kingwood Texas
The sticker on the driver's door jamb says 30 lbs. Since tire pressure goes down about 1 psi for every 10 deg. drop in temp., I usually add air to mine about 2 or 3 times during the winter so they stay at 30 lbs. when cold.
I'd check the press. via the DIC about once a week, again an extra time when the temps drop much to stay.
I'd check the press. via the DIC about once a week, again an extra time when the temps drop much to stay.
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Drifting
Joined: Aug 2007
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From: Sin City NV
The sticker on the driver's door jamb says 30 lbs. Since tire pressure goes down about 1 psi for every 10 deg. drop in temp., I usually add air to mine about 2 or 3 times during the winter so they stay at 30 lbs. when cold.
I'd check the press. via the DIC about once a week, again an extra time when the temps drop much to stay.
I'd check the press. via the DIC about once a week, again an extra time when the temps drop much to stay.
Drifting
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From: Sin City NV
Intermediate
Joined: Sep 2007
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From: Los Angeles California
Any different for the Firestone Wide Ovals? When I first had them mounted I think the dealer had 'em at 36. When the tires got warm one went over 40 PSI and the dash indicator gave me a high-pressure warning.
Team Owner
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From: McKinney TX
St. Jude Donor '21-'22-'23-'24
I would frequently see a difference of 2 lbs in my 05 silver coupe, but never more than 1 lb difference in the 06 coupe. I usually go by what I measure with the tire gage, since it will show me 1/2 lb, where the DIC won't.
Team Owner
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From: San Clemente CA
I watch my tire pressure like a hawk and for the first year or so kept them at 30 cold. At around 12,000 miles the rears started to show wear in the center of both tires. I have lowered them to 28 psi and will see if they even out. I have read that the C5 guys have learned to run 28 psi on the rears for best wear.
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From: merritt island fl
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I watch my tire pressure like a hawk and for the first year or so kept them at 30 cold. At around 12,000 miles the rears started to show wear in the center of both tires. I have lowered them to 28 psi and will see if they even out. I have read that the C5 guys have learned to run 28 psi on the rears for best wear.
Safety Car
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From: Wantagh,L.I. New York
I also have the Firehawks. Stay with the vehicle recomended 30 PSI.
Racer
Joined: Jun 2005
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From: Mine Hill New Jersey
Tire pressure recommendation stickers are vehicle specific, not tire brand specific.I don't agree. I have found my tire pressure readings to be accurate. However, I have found that different external gauges register different readings.
Pro
Joined: Sep 2006
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From: Northville MI
Tire Pressure
I'm happy to see this post as Ive recently installed BFG KDW2's and I'm still in the process of finding the "right" pressure to run with them. I previously ran 28 PSI cold year round on my Goodyears and in 12K miles they showed virtually no wear. With the BFG's I started out with 30 PSI cold, but I've recently reduced that to 29 PSI. With temperatures hovering around the mid 30's to low 40's now, that results in a 31 PSI warm tire driving pressure. I have an F55 suspension and one thing I noticed with the Goodyears was that 1 or 2 PSI made a noticeable difference in ride quality regardless of whether the car was in Tour or Sport mode. I'll drive my car on cold dry days in the Winter, so I'll continue in my efforts to find that "comfort/handling/wear" compromise with the new tires. BTW, I have a new digital tire gauge and a 25 year old Sears dial type gauge. The Sears gauge is dead nuts accurate with the DIC display or they're both wrong.