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:
Cockpit
1. Instrument brightness control switch
(P.2-42)
2. TRIP/RESET switch for twin trip odometer
(P.2-7)
3. Headlight, fog light and turn signal
switch
— Headlight (P.2-38)
— Turn sign ...
Brake booster
Check the brake booster function as
follows:
1. With the engine off, depress and
release the foot brake pedal more than
20 times. When the foot brake pedal
movement (distance of travel) rema ...
Setting the rear-compartment airvents
Setting the center vents in the rear
compartment
1 Rear-compartment air vent, left
2 Rear-compartment air vent, right
3 Rear control panel
When the climate control panel is switched
on/off, th ...
