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:
Checking the oil level using the oildipstick
When checking the oil level:
• park the vehicle on a level surface.
• the engine should be switched off for
approximately five minutes if the engine is
at normal operating temperature.
Exam ...
Touch-Sensitive Screen Buttons
Touch-sensitive screen buttons are located on the screen. When a screen button
has been selected, a beep sounds. Screen buttons are highlighted when a feature
is available. ...
Cleaning the Components
Use care when touching or cleaning the components such as the DVD player or the
discs.
Do not use DVD lens cleaners for DVD players because the lens of the DVD optics
can become contaminated by lub ...