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 a half (1½) 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:
2011 Buick Regal Review
More than a few surprises have accompanied the rebirth of General Motors.
Chief among them is the resurgence of Buick, which was chosen as one of just
four brands GM kept alive, even as it euthani ...
Traction – AA, A, B, 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 governm ...
Defensive Driving
Defensive driving means “always expect the unexpected.” The first step in driving
defensively is to wear the safety belt. See Safety Belts .
. Assume that other road users (pedestrians, bicycli ...