See also:

American Petroleum Institute (API) Engine Oil Identification Symbol
This symbol means that the oil has been certified by the American Petroleum Institute (API). The manufacturer only recommends API Certified engine oils. CAUTION! Do not use chemical flushe ...

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 woul ...

Far End Audio Performance
• Audio quality is maximized under:     • low-to-medium blower setting,     • low-to-medium vehicle speed,     • low road noise,   &n ...