Infiniti QX: 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.
Uniform tire quality grading
DOT (Department Of Transportation) Quality
Grades: All passenger car tires must
conform to federal safety requirements in
addition to these grades.
Quality grades can be found where applicable ...
Traction AA, A, B and C
The traction grades, from highest to lowest,
are AA, A, B and C. Those grades
represent the tire’s ability to stop on wet
pavement as measured under controlled
conditions on specified govern ...
See also:
Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the dexos specification
and displaying the dexos certification mark are all that is needed for good performance
and engine protection.
Engi ...
Rear Window Wiper/Washer
The rear wiper and rear wash button is located on the instrument panel below
the climate control system.
(Rear Wiper): Press to turn the
rear wiper on and off. The wiper speed cannot be changed. ...
Headlamp washers
If the headlamps are on, and there is sufficient liquid in the washer reservoir,
operating the screen wash will also power-wash the headlamps.
The headlamp power wash will operate on every fifth op ...
