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.

    See also:

    Safety
    Two notable safety improvements for 2010 include side curtain airbags as standard equipment on all four- and six-cylinder models, and a standard electronic stability system on all V-6 models. The ...

    Personal Lights
    Rear personal lights (sedan only) To turn the rear personal lights on, press the switch. To turn them off, press the switch again. Front map lights ...

    Safety
    The 2007 Nissan Altima received a Good rating — the highest possible — in the Insurance Institute for Highway Safety's frontal-offset crash test. As of publication, IIHS hasn't subjected the A ...