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Dot tire quality grading (u.s. cars) – HONDA 2000 Prelude - Owner's Manual User Manual

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DOT Tire Quality Grading (U.S. Cars)

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 controlled

conditions on a specified 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 Standard No.

109. Grades B and A represent

higher levels of performance on the
laboratory test wheel than the
minimum required by law.

Warning: The temperature grade for

this tire is established for a tire that

is properly inflated and not over-

loaded. Excessive speed, underinfla-
tion, or excessive loading either

separately or in combination, can

cause heat build-up and possible tire

failure.

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