Quote:
Originally Posted by Frank Lee
I stopped by a tire shop to borrow their tread depth gauge a while back to see how my inflation strategy was working. F150, tires only a few years old, I'd guess less than 20,000 miles. From new I tried 50 psi (44 sidewall max) but it rode like it had solid tires so I backed off to 46, which they've been at practically the whole time. The center is wearing faster than either of the sides, front and rear, on both sides. So I'm going to back off at least 4 psi and see how that goes.
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The Goodyear Wranglers on my Jeep have worn away twice as fast in the centre as on the edges at max side wall over about 20K miles. The Kumho's of the same size on a similar weight/ size Isuzu didn't have as much of a problem.
I've been told that over pressuring has positive affects on tyre life, even if the centres wear first, you still got more life than aiming for even wear. In the case of my Goodyears, they're on track for ~40k miles, which is better than the more even wearing Kumho's got.
At any rate, tyres are generally cheap compared to fuel.