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Old Apr 23, 2006 | 12:46 PM
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Default Quick Tire Question

I checked the door on the car (2003 Coupe) Rec. tire pressure cold is 30PSI ? Seems kinda low no? What pressure do you guys run the tires at cold?
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Old Apr 23, 2006 | 12:49 PM
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32-33 on non runflats but 30 is ok for a rf
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Old Apr 23, 2006 | 01:33 PM
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30psi at all four corners.
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Old Apr 23, 2006 | 01:35 PM
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Old Apr 23, 2006 | 01:36 PM
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Old Apr 23, 2006 | 01:43 PM
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Originally Posted by o2z51
32-33 on non runflats but 30 is ok for a rf
Ditto. Tire pressures on doors are provided by the car manufacturer. Tire pressures on tires are presented by the tire manufacturer. The best often lies somewhere in the range between the two. On my run flats, I ran at 30lbs and found them stiff and unyielding. Changing pressures did nothing to alleviate that issue which include the little "speed hop" that we all recognize. Once I removed the run flats, 30 lbs was not enough. I played with pressures and found I get the best ride and tightest "feel" at 32-33 lbs.

As an aside, I find the big Michelins on my Denali feel best at 40lb despite the general's guideline of 35. They have been great tires with 3 out of 4 running over 50k and looking like new. One was bit by a freeway debris field and was replaced.
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Old Apr 23, 2006 | 01:43 PM
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30 all around.
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Old Apr 23, 2006 | 02:05 PM
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30 psi cold, they will heat up (in the summer) to 34 psi. Notice that the door sticker says to add 4 psi if they are hot (bringing it to 34 psi).
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Old Apr 23, 2006 | 02:50 PM
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Old Apr 23, 2006 | 03:19 PM
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30 psi cold on all 4 corners...
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Old Apr 23, 2006 | 05:16 PM
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Wow ! I come home from the Harbor Bar & all kinds of replys ! I'm on my way out to uncover the car pull em back to 30PSI. Could'nt drive the car today as it looked like rain..Thanks guys !
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