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:

    Fuse box in the cargo compartment
    ► Open the tailgate. ► To open: insert a suitable object, e.g. a coin, into the slot of release button 1 on the cover. ► Turn release button 1 90° in the direction of the a ...

    Manual gear selection
    When D is selected, manual mode may be temporarily accessed by operating the steering wheel mounted shift paddles. While in D, temporary manual mode will be held while the driver is accelerating, ...

    Removal and Installation of the Sealant Canister
    To remove the sealant canister: 1. Unlock the air only hose (F) from the tire sealant canister (B) by pulling up on the lever. 2. Pull the air only hose (F) from the tire sealant canister (B). 3 ...