That pressure (on the tire sidewall) is the MAXIMUM you can run to achieve the max load-carrying capacity....it is NOT the best pressure for normal running!! Larry sandiego16v Personally with the way I drive I run the pressure for the tire not the car. Like on my Z24 I bet hte label says 2?PSI but my tires are rated at 44 so I run ~44. I am a rather aggressive drive like most on the list. Rhett