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Old 06-13-2013, 02:04 PM   #11
cptplt
Scooby Newbie
 
Member#: 22439
Join Date: Aug 2002
Vehicle:
02 WRX
black

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The OEM "recommended" pressure on the plate by the door is the minimum pressure they think most of their customers will like the best in terms of ride, handling. As long as you do not exceed the tire manufacturers MAXIMUM pressure ( which is on the sidewall) you should be safe though your ride may be a little harder at very high pressures but its all different strokes for different folks.
Better 5 over than 5 under for any tire pressure! Unless you want to be like the Ford Explorer and Firestone tire affair.

One thing which has always puzzled me is that while they always say its the cold pressure which is important. What if you do wake up in the mountains of AZ say and the pressure is just below the tire manufacturers max and then the temp rises say 4o deg F (which should be a 4psi change) over the course of the day say . Should you adjust for that?
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