Warranty

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of their cord material(s) are marked on at least one side-
wall. For example:
TREAD 2 PLY POLYESTER + 2 STEEL
SIDEWALL 2 PLY POLYESTER
Radial: Radial ply tires will have the word “radial” on at
least one sidewall. An “R” in the tire size designation also
indicates radial ply construction.
Tubeless or Tube Type: Tires are marked as either “tube-
less” or “tube type,” whichever is applicable, on at least
one sidewall.
UNIFORM TIRE QUALITY GRADING
The Uniform Tire Quality Grading (“UTQG”) standards are
intended to assist you in making an informed choice in your
purchase of passenger car tires by providing information
indicating relative performance of these tires in the areas of
tread wear, wet braking traction (straight-ahead), and tem-
perature resistance. All passenger car tires must conform to
federal safety requirements in addition to these grades.
Treadwear
The treadwear grade is a comparative rating based on the
wear rate of the tire when tested under controlled condi-
tions on a speci ed government test course. For example,
a tire graded 150 would wear one and one half (1½ ) 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 signi -
cantly from the norm due to variation in driving habits,
service practices and differences in road characteristics and
climate.
Traction
The traction grades, from highest to lowest, are AA, A, B,
and C. Those grades represent the tire’s ability to stop on
wet pavement as measured under controlled conditions on
speci ed government test surfaces of asphalt and concrete.
Warning:
The traction grade assigned to a tire is based on
straight-ahead braking traction tests, and does not include
acceleration, cornering, hydroplaning, or peak traction
characteristics.
Temperature
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of heat
and its ability to dissipate heat when tested under con-
trolled conditions on a speci ed indoor laboratory test
wheel. Sustained high temperature can cause the material
of the tire to degenerate and reduce tire life, and excessive
temperature can lead to sudden tire failure. The grade C
corresponds to a level of performance which all passenger
car tires must meet under the Federal Motor Vehicle Safety
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Standard No.109. Grades B and A represent higher levels
of performance on the laboratory test wheel than the mini-
mum required by law. Warning: The temperature grade
is established for a tire that is properly in ated and not
overloaded. Excessive speed, underin ation, or excessive
loading, either separately or in combination, can cause heat
buildup and a possible tire failure.