Engine oil
See also:
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 wou ...
Anti-freeze
In the winter when it is anticipated that the
outside temperature will drop below 328F (08C),
check the anti-freeze to assure proper winter
protection. For additional information, see “Engine ...