Owner's Manual
Page 297
...cause the material of the tire to a level of performance which all passenger car tires must meet under controlled conditions on specified government test surfaces of asphalt and concrete. Grades B and A represent higher levels of performance on the government course as a tire graded 100.... temperature can cause heat buildup and possible tire failure. 6-48 Excessive speed, underinflation, or excessive loading, either separately or in road characteristics and climate. The relative performance of tires depends upon the actual conditions of their use, however, and may have poor ...
...cause the material of the tire to a level of performance which all passenger car tires must meet under controlled conditions on specified government test surfaces of asphalt and concrete. Grades B and A represent higher levels of performance on the government course as a tire graded 100.... temperature can cause heat buildup and possible tire failure. 6-48 Excessive speed, underinflation, or excessive loading, either separately or in road characteristics and climate. The relative performance of tires depends upon the actual conditions of their use, however, and may have poor ...