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Wheels and Tires
293
Tire Quality Grades apply to new pneumatic passenger car tires. They do
not apply to deep tread, winter-type snow tires, space-saver or temporary
use spare tires, light truck or LT type tires, tires with nominal rim
diameters of 10 to 12 inches or limited production tires as defined in Title
49 Code of Federal Regulations Part 575.104(c)(2).
U.S. Department of Transportation-Tire quality grades: The U.S.
Department of Transportation requires Ford Motor Company to give you
the following information about tire grades exactly as the government
has written it.
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 1
1
⁄
times as well
2
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.
Traction AA A B C
Note: The traction grade assigned to this tire is based on straight-ahead
braking traction tests, and does not include acceleration, cornering,
hydroplaning or peak traction characteristics.
The traction grades, from highest to lowest are AA, A, B, and C.
The grades represent the tire's ability to stop on wet pavement as
measured under controlled conditions on specified government test
surfaces of asphalt and concrete. A tire marked C may have poor
traction performance.
2013 MKX (mkx)
Owners Guide gf, 3rd Printing
USA (fus)
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