Quote:
Originally Posted by bestclimb
Front left tire, cooper CS4 mounted on a Subaru forester.
at 169,000 miles on jan 29
average tread depth
.319"
then at 195,000 miles on jan 21
average tread depth
.236
Change
inner
.076"
middle
.082"
outer
.09"
average wear
.082
... What these measurements do tell me is that I need to rotate my tires and do an alignment.
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That's some good data, thanks for sharing.
i noticed years ago that Subaru ran positive camber on the front wheels--never understood why since it grinds up the front outer edges. The late models such as yours probably don't do that anymore, but doesn't hurt to check.
Over 26k miles you are wearing at .003 inch per 1k miles so you will get about 58k miles down to 1/16. The outer-to-inner wear wedge of .014 looks like excessive toe-in to me, camber wear is much worse. But even zero toe with a slight positive camber could give you that also. So measure the alignment and post up the results.