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:

    Tow mode
    The TOW MODE should be used when pulling a heavy trailer or hauling a heavy load. Driving the vehicle in the TOW MODE with no trailer/load or light trailer/light load will not cause any dama ...

    Low fuel warning (Amber)
    Illuminates when the remaining fuel reaches a minimum of 3 U.S gallons (12 liters), giving an approximate range of 50 miles (80 km). Refuel at the earliest opportunity. ...

    Overview RSE Base System
    Some DVDs do not allow fast forwarding or skipping of the copyright information or previews. If the DVD does not begin playing at the main title, refer to the on-screen instructions. The DVD player ...