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 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:
Repair and replacement procedure
The front air bags, side air bags, curtain air bags
and pretensioners are designed to inflate on a
one-time-only basis. As a reminder, unless it is
damaged, the supplemental air bag warning light
...
Spark plugs
Be sure the engine and ignition switch
are off and that the parking brake is
engaged securely.
Be sure to use the correct socket to
remove the spark plugs. An incorrect
socket can dam ...
Brakes
If the brakes do not operate properly, have the
brakes checked by a NISSAN dealer. ...