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 rela
The wheels and tires are important and integral parts of your vehicle’s design;
they cannot be changed arbitrarily. The tires fitted as standard equipment are optimally
matched to the characteristics of the vehicle and were selected to give the best
possible combination of running performanc