Temperature – A, B, CThe temperature grades are A (the highest),B, and C, representing the tire’s resistance to thegeneration of heat and its ability to dissipateheat when tested under controlled conditions on aspecified indoor laboratory test wheel. Sustainedhigh temperature can cause the material of the tireto degenerate and reduce tire life, and excessivetemperature can lead to sudden tire failure.The grade C corresponds to a level of performancewhich all passenger car tires must meet underthe Federal Motor Vehicle Safety StandardNo. 109. Grades B and A represent higher levelsof performance on the laboratory test wheelthan the minimum required by law.Warning: The temperature grade for thistire is established for a tire that is properlyinflated and not overloaded. Excessive speed,underinflation, or excessive loading, eitherseparately or in combination, can cause heatbuildup and possible tire failure.Wheel Alignment and Tire BalanceThe tires and wheels on your vehicle were alignedand balanced carefully at the factory to give youthe longest tire life and best overall performance.Adjustments to wheel alignment and tire balancing willnot be necessary on a regular basis. However, ifyou notice unusual tire wear or your vehicle pulling toone side or the other, the alignment might need tobe checked. If you notice your vehicle vibrating whendriving on a smooth road, the tires and wheelsmight need to be rebalanced. See your dealer/retailerfor proper diagnosis.5-74
