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:

    Cargo net
    Important safety notes WARNING   Make sure the cargo net is properly engaged at top and bottom position and the tightening belts are securely fastened. Never use a damaged cargo net. A ...

    Service and literature
    Your vehicle is covered under the terms of the warranties printed in the Service and Warranty Information booklet. Your authorized Mercedes-Benz Center will exchange or repair any defective parts ...

    Before starting or driving
    If the vehicle is involved in a collision it should be checked by a Land Rover Retailer/Authorized Repairer, or suitably qualified persons, before starting or driving. ...