Tread wear

The tread wear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified U.S. government course. For example, a tire graded 150 would wear one and one-half times as well on the government course as a tire graded 100.

The relative performance of tires depends upon the 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 conditions.

    See also:

    Engine oil viscosity
    Viscosity describes the flow characteristics of a fluid. If an engine oil has a high viscosity, this means that it is thick; a low viscosity means that it is thin. Select an engine oil with an ...

    Notes on using dual-zone automatic climate control
    The following contains notes and recommendations on optimum use of dualzone automatic climate control. • Activate climate control using the and buttons. The indicator lamps in the and but ...

    Navigation announcements
    Repeating navigation announcements WARNING Navigation announcements are intended to direct you while driving without diverting your attention from the road and driving. Please always use th ...