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:
Checking automatic transmission fluid at cool temperature (59°F-77°F
[15°C-25°C])
If a fluid check is necessary at a low
fluid temperature (59°F-77°F
[15°C-25°C]), perform the check
using the cold range on the dipstick.
However, the fluid must be
re-checked at the proper ...
Tire pressure monitoring system (TPMS)
Each tire, including the spare (if
provided), should be checked
monthly when cold and inflated to
the inflation pressure recommended
by the vehicle manufacturer on the
vehicle placard or tir ...
When to use the automatic locking mode
This mode should be used any time a child safety seat, except a
booster, is installed in passenger front or rear seating positions. Children
12 years old and under should be properly restrained in ...
