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 (11⁄2) 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:
Windshield wipers
Windshield wiper: Rotate the end
of the control away from you to
increase the speed of the wipers;
rotate towards you to decrease the
speed of the wipers.
Speed dependent wipers (if
equip ...
Exceptions
There are several exceptions to the Normal Schedule. They are listed
below:
Normal vehicle axle maintenance: Rear axles and power take-off
(PTO) units with synthetic fluid and light-duty trucks e ...
Engine oil and filter recommendations
Use SAE 5W-20 engine oil
Look for this certification
trademark.
Only use oils certified for gasoline engines by the American Petroleum
Institute (API). An oil with this trademark symbol confor ...
