[ROUSHAC]

Originally Posted by olddog

I double checked with a second gauge and got the same reading.

Mind you I haven't had the car long, so I do not know where the pressure has always been. It's possible that the previous owner had carried more pressure, seen the problem, and already lowered the pressure to correct for it. That is why I thought I would ask the question. The tires set well at 19 where they were at.

My thought was that since the fronts are P245 at 20 psi and wear looks good, and weight is about the same front to rear, then the rear tires being wider should be less pressure. Theoretically 245/295*20= 16.7, so 17 psi in the rears should hold about the same weight as 20 in the front. I'm sure there are more complicated factors, but thought that might be a good rule of thumb. Again since I do not know the history, thought I would seek advise.

Thanks

I think you may have answered the question yourself. Sounds like the most logical explanation for the wear pattern.

Sounds like you are pretty good where you are for letting the tires wear evenly from this point on.

Just remember to put a few more pounds in the tires if you plan on doing any "spirited driving" to keep the tires from rolling over on the rims or worse.