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:

    Notes on selecting, mounting and replacing tires
    Only mount tires and wheels of the same type and make. Only mount tires of the correct size onto the wheels. After mounting new tires, run them in at moderate speeds for the first 60 miles ( ...

    Important safety notes
    Service products include the following: • fuels (e.g. gasoline, diesel) • additives for exhaust gas aftertreatment (DEF) • lubricants (e.g. engine oil, transmission oil) • coolant • brake fl ...

    SRS warning lamps
    SRS functions are checked regularly when you switch on the ignition and when the engine is running. Therefore, malfunctions can be detected in good time. The SRS warning lamp in the instrumen ...