Infiniti QX: Treadwear - Uniform tire quality grading - Technical and consumer information - Infiniti QX Owner's ManualInfiniti QX: 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 wear one and one-half (1 1/2) times as well on the government course as a tire graded 100. The relative performance of tires depends upon actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate.

    Uniform tire quality grading
    DOT (Department Of Transportation) Quality Grades: All passenger car tires must conform to federal safety requirements in addition to these grades. Quality grades can be found where applicable ...

    Traction AA, A, B and C
    The traction grades, from highest to lowest, are AA, A, B and C. Those grades represent the tire’s ability to stop on wet pavement as measured under controlled conditions on specified govern ...

    See also:

    Licensing
    Manufactured under license from Dolby Laboratories. Dolby and the double-D symbol are trademarks of Dolby Laboratories. Manufactured under license under U.S. Patent #’s: 5,451,942; 5,956,674 ...

    Accessory wheels and tires
    Note: Use the diagram above to record accessory wheel and tire information. 1. Front tire pressure. 2. Rear tire pressure. 3. Wheel and tire information (size, speed rating, etc.). WARNING ...

    Map Destination Screen Functions
    If the map screen is used to show destination, it will have map screen capabilities such as GO, Mark, Zoom, Scroll, etc. The address is shown at the top of the screen. Destination Map Screen ...