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 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:
Hill Climbing
NOTE: Before attempting to climb a hill, determine the
conditions at the crest and/or on the other side.
Before climbing a steep hill, shift the transmission to a
lower gear and shift the transfe ...
Materials Added To Engine Oils
Do not add any supplemental materials, other than leak detection dyes, to your
engine oil. Engine oil is an engineered product and its performance may be impaired
by supplemental additives. ...
Lights-On Reminder
If the headlights or parking lights are on after the ignition
is turned to the LOCK position, a chime will sound to
alert the driver when the driver’s door is opened. ...