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 (1- 1/2) 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:
Glossary of tire terminology
- Accessory weight
The combined weight (in excess of
those standard items which may be
replaced) of automatic transmission,
power steering, power brakes,
power windows, power seats, radio,
...
Use of engine braking
Remember to make use of engine braking in addition to foot braking. When descending
a grade, if only the foot brake is used, the brakes may start working improperly
because of brake fluid overheat ...
Emergency Locking Retractor (ELR)
The driver’s seatbelt has an Emergency
Locking Retractor (ELR).
The emergency locking retractor allows
normal body movement but the retractor
locks automatically during a sudden stop,
impact ...