DOT Quality Grades

Treadwear
Traction AA A B C
Temperature A B C

All passenger car tires must conform to Conform to Federal Safety Requirements
All passenger car tires must conform to Federal Safety Requirements in addition to these grades.◀

    See also:

    At a glance
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    Engine oil temperature
    Engine oil temperature ▷ Cold engine: the pointer is at the low temperature end. Drive at moderate engine and vehicle speeds. ▷ Normal operating temperature: the pointer is in th ...

    Vehicle battery
    Maintenance The battery is maintenance-free, i.e., the electrolyte will last for the life of the battery. Your service center will be glad to advise you on questions regarding the battery. Batt ...