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:

    Hitch Cover (with Dual Exhaust)
    To remove the hitch cover: 1. Turn the fasteners on the lower tabs 90 degrees counterclockwise. 2. Pull the lower edge of the cover out slightly. 3. Lift the cover up off the upper bracket. To r ...

    Settings
    Depending on vehicle specification, there are up to 3 options in the Settings menu: • The Voice mail option allows you to save or edit the number of the voice mail server for your specified ...

    Vehicle Messages
    Messages displayed on the DIC indicate the status of the vehicle or some action may be needed to correct a condition. Multiple messages may appear one after another. The messages that do not require ...