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 times as well on the government course as a tire graded 100. The relative performance of tires depends upon the 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:
MMT In Gasoline
MMT is a manganese containing metallic additive that is
blended into some gasoline to increase octane. Gasoline
blended with MMT provides no performance advantage
beyond gasoline of the same oct ...
Shifting Procedure
2H to 4H or 4H to 2H
Shifting between 2H and 4H can be made with the vehicle stopped or in motion.
With the vehicle in motion, the transfer case will engage/disengage faster if you
momentarily re ...
Emissions Inspection And Maintenance Programs
In some localities, it may be a legal requirement to pass an inspection of your
vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.
For states that require ...