two ways to check: 1: wear marker; 2: Penny coin

来源: x_longhorn 于 2014-05-31 08:55:48 [] [旧帖] [给我悄悄话] 阅读数 : (341 bytes)

If the dealer did not ask to replace tires, most likely your tires are okay.  Dealers always want more business - sometimes, they just over-do it. 

There are two ways to check the tire threads by yourself: 
1) Tire wear marker - between threads
2) Penny coin - head

 

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