1995 Chevrolet Monte Carlo Owner's Manual - Page 235

Temperature - A, B, C The temperature grades are (the highest), B, and C, A representing thetire's resistance tothe generation of heat and its ability to dissipate heat when tested under controlled conditionson a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerateand reduce tire life, and lead to sudden tire failure. excessive temperature can The gradeC corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety StandardNo. 109. Grades B and A represent higher levels of performance on the laboratory testwheel than the minimum required by law. Warning: The temperature grade forthis tire is established fora tire that is properly inflated and not overloaded. Excessive speed,underinflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure. These grades aremolded on the sidewallsof passenger car tires. While the tires available asstandard or optional equipment on General Motors vehicles may vary with respect to these grades, such tires meet General all Motors performance standards and have been approved for use on General Motors vehicles. All passenger type (P Metric) tires must conform to Federal safety requirements in addition to these grades. Wheel Alignment and Tire Balance The wheels on your vehicle were aligned and balanced carefully at the factoryto give you the longest tire life and best overall performance. In most cases, you will not need to have your wheels aligned again. However, if you notice unusual tire wear or your vehicle pulling one way or the other, the alignment may need to be reset. If you notice your vehicle vibrating when driving on a smooth road, your wheels may need to be rebalanced. 6-4 1