See also:

Tire replacement requirements
Your vehicle is equipped with tires designed to provide a safe ride and handling capability. WARNING: Only use replacement tires and wheels that are the same size, load index, speed rating and ty ...

Engine oil
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Treadwear
The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would w ...