So, finally found the fronts in a warehouse in Florida, they had the last four 275/35 zr18's in the country, and got 295/35 zr18's for the rear. So, I was wondering what everyone found for the best tire pressure for the fronts and rears? They are not runflats, so any help would be great! I put them at 30 psi to start with, but just wondering what you have found that works best!

~Cody

I have always kept mine at 32 psi. Don't know if it's the best, but it works. Had 255/40/17's on front and 285/40/17's on rears. Now I have 275's on the fronts.

35psi if youre just driving around. Pretty sure thats what the door placard says.

thanks texz, that was what I was lookin for. FivePoint7z28~ These are not the stock tires, so the stock air pressure will not work. These tires are much wider than stock, so there are huge variations that take place with a wider tire, such as the inside wearing out prematurely from overinflation..

The only thing that would change what air pressure you would run in the tire on that car is the load range of the tire and if it were an EMT. The load on stock tires is a 96 whereas the load range of the tire youre running is a 97. Slightly higher, but not enough to make any real changes. Its not like going from a 96 to a 122/108 Load range E. The overall construction on the inside of the tire is slightly stronger so maybe run 35-36 for normal driving. How would over inflation cause the inner shoulder to wear more? Over inflation in a way ovals out the tire and causes the middle of the tire to wear quicker. The two things that would cause an inner shoulder to wear quickly is underinflation and/or a bad alignment.

I run 40psi in mine. When I worked at Goodyear, we called and asked some of the engineers. They told us that you will get the best ride (not long lasting) setting them around 35psi. If you are setting them closer to the max, the tire will run cooler and get the most life. With all that said, the more psi the harder they ride. This obviously doesn't apply to DR's.