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Tire wear in the center is usually a sign of over inflation. What is the recommended pressure on the tire sidewall? Pressure varies with the type of tire.
I run 32 in my dunlops and 36 in my BFGs. In the Hoosiers, I run 28 in the front and 22 in the rear. The Hoosier pressures were determined by how far they rolled over on the sidewall and a pyrometer.
The sidewalls say a max of 38 which is what I have them set at. Seems high and that is probably the cause of my problem.

I'm missing the door plate on my car which I think lists the factory's recommended tire pressure for the car? Isn't this what my tires should be set to?

thanks for the help!
The sidewalls say a max of 38 which is what I have them set at. Seems high and that is probably the cause of my problem.

>>>You're right, it is. :>) Max means MAX, i.e. any more and you are creating a DANGEROUS situation (their lawyers say). The normal range is considerably below that.

>I'm missing the door plate on my car which I think lists the factory's recommended tire pressure for the car? Isn't this what my tires should be set to?

>>>If you were running identical tires to the originals, which undoubtedly you're not. If you have an L-model, it was equipped with bias-ply tires which have totally different pressure requirements from radials.

I'd suggest starting off in the low to mid 30s and see how that works. It's always a compromise between ride comfort and handling response. Too much air and it jars your teeth and skips over bumps, and too little air and the car feels mushy.
The middle of many 50-profile tires will wear faster than the edges, especially with Pirelli P-7s, I've noticed. Seems to be a tire-related thing. Additionally, the rt rear will wear faster than the left rear, probably due to engine torque, so it behooves an owner to interchange the rears now 'n then to even out the wear. 38psi rear is about right for high speed highway driving, with 34 in front. For autocross & track work, 42 front & 46-48 in the rear works well. But we don't drive on the highway with that high pressure- it'll swap fillings in your teeth! The factory recommended pressures were specified for 185-70x 15 fronts & 205 or 215-70x 15 rears, in belted-bias Arrivas, not radial tires, so unless you still run these ancient tires, you'll be well-advised to run more pressure than suggested for better control.
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