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:

    Turn signal lamps/side marker lamps
    ► Switch off the lights. ► Open the hood. ► Turn bulb holder 1 (WY 5 W)/2 (3457A) counter-clockwise and pull it out. ► Remove the bulb from bulb holder 1/2. ► Inse ...

    Terms
    It is important to familiarize yourself with the following terms before loading your vehicle: ► Curb Weight (actual weight of your vehicle) - vehicle weight including: standard and opt ...

    Delayed Headlamps
    Delayed headlamps provide a period of exterior lighting as you leave the area around the vehicle. This feature is activated when the headlamps are on due to the automatic headlamps control featur ...