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Temperature: A, B or C For example: Treadwear 200, Traction AA, Temperature A. 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 For example, a tire graded 150 (Treadwear-value 150) would wear one-and-one-half (1 1/2) times as The relative performance of tires depends upon the actual conditions of their use, however, and may Traction The traction grades, from highest to lowest, are AA, A, B and C. Those grades represent the tire's surfaces of asphalt and concrete. A tire marked C may have poor traction performance ⇒ . Temperature The temperature grades are A (the highest), B, and C representing the tire's resistance to the Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and The grade C corresponds to a level of performance which all passenger car tires must meet under the performance on the laboratory test wheel than the minimum required by law ⇒ . WARNING The traction grade assigned to this tire is based on straight-ahead braking traction tests, and
WARNING The temperature grade for this tire is established for a tire that is properly inflated and not
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