Originally Posted by MGBGT

Just a note of caution:
as some have stated above, as long as you stay within the upper limit that is printed on the sidewall of the tire, you should be fine. But how does that really work? The pressure is typically cold pressure (someone correct me if I'm wrong), so what can push you over the limit if you inflate the tires to at-the-limit values? Changes in ambient temperature, and vehicle loading can. The closer you inflate your tires to the limit, the less marging of error you have. If you inflate to within a few psi of the limit, and do so on a cold day, with an empty vehicle, my guess is that if it warms up and you load up the car, you could find yourself easily over the limit.
Just food for thoughts...