Owner Guide 1st Printing
Page 151
...failure. Maintenance and care Temperature A B C The temperature grades are A (the highest), B, and C, representing the tire's resistance to the generation of heat when tested under the Federal Motor Vehicle Safety Standard No. 109. The grade C corresponds to a level of performance on a specified indoor laboratory test wheel.... Grades B and A represent higher levels of performance which all passenger cars tires must meet under controlled conditions on the laboratory test wheel than the minimum required by law.
...failure. Maintenance and care Temperature A B C The temperature grades are A (the highest), B, and C, representing the tire's resistance to the generation of heat when tested under the Federal Motor Vehicle Safety Standard No. 109. The grade C corresponds to a level of performance on a specified indoor laboratory test wheel.... Grades B and A represent higher levels of performance which all passenger cars tires must meet under controlled conditions on the laboratory test wheel than the minimum required by law.