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Servicing Your Mystique
227
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[SV27400(ALL)02/95]
Information About Tire Quality Grades
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[SV27500(ALL)01/95]
New vehicles are fitted with tires that have their Tire Quality
Grade (described below) molded into the tire’s sidewall. These
Tire Quality Grades are determined by standards that the
United States Department of Transportation has set.
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[SV27550(ALL)01/95]
Tire Quality Grades apply to new pneumatic tires for use on
passenger cars. They do not apply to deep tread, winter-type
snow tires, space-saver or temporary use spare 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).
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[SV27600(ALL)01/95]
U.S. Department of Transportation — Tire quality grades: The
U.S. Department of Transportation requires Ford to give you the
following information about tire grades exactly as the
government has written it.
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[SV27799(ALL)01/95]
Treadwear
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[SV27800(ALL)01/95]
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 (1 1/2) 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.
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[SV27999(ALL)01/95]
Traction A B C
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[SV28000(ALL)01/95]
The traction grades, from highest to lowest, are A, B, and C,
and they 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. Warning: The traction grade assigned
to this tire is based on braking (straightahead) traction tests and
does not include cornering (turning) traction.
File:cdsvz.ex
Update:Fri Feb 23 11:01:54 1996
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