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 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 conditions.
See also:
Downhill gradients
On long and steep gradients, you
must
reduce the load on the brakes by shifting
early to a lower gear. This allows you to take
advantage of the engine braking effect and
helps avoid overhea ...
Notes on selecting, mounting and
replacing tires
- Only mount tires and wheels of the same
type and make.
- Only mount tires of the correct size onto
the wheels.
- After mounting new tires, run them in at
moderate speeds fo ...
Securing the vehicle to prevent it from rolling away
WARNING
Only jack up the vehicle on level ground or on slight inclines/declines. The
vehicle could otherwise fall off the jack and injure you or others.
If your vehicle is equipped with a whe ...