If you have the Conti's, you're going to want to run them higher than the recommended 30psi on the door jamb. These tires wear (cup) terribly when at a lower pressure. Mine were cupping pretty bad by 12,000 miles when the dealer recommended upping the pressure to 36. With the pressure at 36 psi, I was able to squeeze 34,000 miles out of the tires before having to replace them. (I think I may hold a mileage record with the Contiseals, as most were replacing them between 12,000 and 20,000 miles.) Even with the pressure at 36, my tires cupped quite a lot. I would run yours at 40 psi for a while and see how it does. If the ride is too harsh, you could drop them down a bit, but I wouldn't go below 35 psi. I replaced my tires with the Goodyear Assurance Comfort Treads. It is unbelievable how much better the car rides with the Goodyears compared to the Contis.