Tire wear got worse
 

I got about 20K miles on my last set of Pirelli 19" sport tires. The worst wear was of course, the insides of the rear tires. I ran those tires at the reccommended 32 pounds of air.

This set I increased the tire pressures to 35 pounds all around and the wear got worse! I guess the harder tire caused the tires to ride on the inner treads even more. I'm at 15K miles and there is no tread left on the rear inside treads. I like the Pirelli's but I'm going to stick with the 32 pounds of air from now on.

What kind of driving habits?

time for alignment. they can remove some of the negative camber. if your rear toe is off it can make the problem worst.

Thanks, I'll get it checked. By the way, that was mostly highway miles, moderate driving.

You might want to consider a 4 wheel alignment.

Highways will chew up soft tires. The softer the tire the hotter it gets at high speed.