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:
Brakes
If the brakes do not operate properly, have the
brakes checked by a NISSAN dealer. ...
Air conditioner operation
The air conditioner system should be operated
for approximately 10 minutes at least once a
month. This helps prevent damage to the air
conditioner system due to the lack of lubrication.
Cooling ...
Rapid air pressure loss
Rapid air pressure loss or a “blow-out” can occur
if the tire is punctured or is damaged due to
hitting a curb or pothole. Rapid air pressure loss
can also be caused by driving on under-inflate ...