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tire wear with factory settings

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Old Jul 2, 2021 | 10:55 AM
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tire wear with factory settings

My 2019 GT has 29000 miles and the inside front is worn to the cord. The dealer put on two new tires and checked alignment - said it was near factory spec. I checked and have the printout. I am 71 and do not stress the car at all. Is this normal?
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Old Jul 2, 2021 | 11:34 AM
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depends on what kind of tires -- the super soft summer-only ones can wear out in about 10-15K miles; but generally they should wear pretty evenly

And I notice they said "near" factory spec . . . does that mean close to spec but out of spec? Is the car lowered? Lowering causes negative camber that can make the inside wear faster than the outside

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generally this "introductions" section is for first posts like "hi I'm new to the forum" ; and you'll get better response to technical questions by posting in the model-specific sub-forum
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Last edited by Bert; Jul 2, 2021 at 11:38 AM.
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Old Jul 2, 2021 | 12:59 PM
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Originally Posted by Bert
depends on what kind of tires -- the super soft summer-only ones can wear out in about 10-15K miles; but generally they should wear pretty evenly

And I notice they said "near" factory spec . . . does that mean close to spec but out of spec? Is the car lowered? Lowering causes negative camber that can make the inside wear faster than the outside

PS -- welcome to the forum!

generally this "introductions" section is for first posts like "hi I'm new to the forum" ; and you'll get better response to technical questions by posting in the model-specific sub-forum
2015 - 2020 - The Mustang Source - Ford Mustang Forums
Thank you for the information. This car is dead stock with original michelin p4s tires. The alignment left front toe-in was -0.1 degree and should have been -.01 degree. Tire wear was full tread middle and left while worn to the cords right inside. Camber was -1.2 degrees both before and after "alignment". In my experience this extreme wear is due to toe-out and decambering, but the dealer said this is correct. I am extremely easy on tires and this is NOT normal, indicating my tires are getting minimal grip and performance.

Last edited by Tubman; Jul 2, 2021 at 01:08 PM.
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Old Jul 2, 2021 | 04:26 PM
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hmmmm . . . P4S is a 300 tread-wear-rated tire, right? not super soft . . . toe is not horrible but should be much better (closer to zero) and might be contributing . . . -1.2 deg camber is a lot; pretty sure that is out of spec negative, good camber for a road track car but might wear tires on the street . . . . so yes I agree with you, the combination of toe and camber likely contributed to the uneven tire wear


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