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:
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 ...
Reception Quality
Satellite reception may be interrupted due to one of the
following reasons:
• The vehicle is parked in an underground parking
structure or under a physical obstacle.
• Dense tree coverage ma ...
Materials Added To Fuel
All gasoline sold in the United States is required to
contain effective detergent additives. Use of additional
detergents or other additives is not needed under normal
conditions and they would ...