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 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.

    See also:

    Engine
    ...

    Best-in-class 292 Horsepower with All-new Aluminum 3.6-liter Pentastar V-6 Engine
    Engineered to provide exceptional in-town and highway efficiency and performance, the all-new 2011 Chrysler 300 and 300 Limited models feature the newest powertrain from the automaker - the 3.6-li ...

    Cooling System – Drain, Flush, And Refill
    If the engine coolant (antifreeze) is dirty or contains a considerable amount of sediment, clean and flush with a reliable cooling system cleaner. Follow with a thorough rinsing to remove all de ...