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:
Synthetic Engine Oils
Synthetic engine oils can be used if the recommended oil quality requirements
are met, and the recommended maintenance intervals for oil and filter changes are
followed. ...
Exhaust System
The best protection against carbon monoxide entry into
the vehicle body is a properly maintained engine exhaust
system.
If you notice a change in the sound of the exhaust system;
or if the exha ...
Disc Errors
If the DVD player is unable to read the disc, a Disc Error
message is displayed on the VES™ and Radio displays
and the disc is automatically ejected.Adirty, damaged, or
incompatible disc form ...