Uniform Tire Quality Grading Standards

A uniform standard to grade the quality of tires with regards to tread quality, tire traction and temperature characteristics. Ratings are determined by tire manufacturers using U.S. government testing procedures. The ratings are molded into the sidewall of the tire.

    See also:

    Fuel grade
    You should only refuel with premiumgrade unleaded gasoline, as this avoids damaging the catalytic converter. Flexible fuel vehicles, identifiable from the label inside the fuel filler flap, ...

    Traction
    WARNING The traction grade assigned to this tire is based on straight-ahead braking traction tests, and does not include acceleration, cornering, hydroplaning, or peak traction characterist ...

    Capacities
    Missing values were not available at time of going to print. ...