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:

    Replacement Bulbs
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    Trailer power supply
    The trailer power socket of your vehicle is designed for connecting the 7-pin connector supplied as part of the Mercedes-Benzapproved trailer coupling. Depending on your trailer, you may need an ...

    Tow/Haul Mode
    The vehicle has a Tow/Haul Mode. The Tow/Haul Mode adjusts the transmission shift pattern to reduce shift cycling, providing increased performance, vehicle control, and transmission cooling when d ...