1995 Oldsmobile 88 Owner's Manual - Page 265

Temperature A, B, C The temperature grades are A (the highest),B, and C , representing the tire's resistance to generation of the heat andits ability todissipate heat when testedunder controlled conditions on a specified indoor laboratory test wheel.Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to alevel of performance which allpassenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory testwheel than the minimum required by law. Warning: The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or combination, in can cause heat buildup and possible tire failure. These grades are molded on the sidewalls of passenger car tires. - While the tires available as standard or optional equipment on General Motors vehicles may varywith respect to these grades, all such tires meet General Motors performance standards andhave been approved for use on General Motors vehicles. All passenger type (P Metric) tiresmust conform to Federal safety requirements in addition to these grades. Wheel Alignmentand Tire Balance The wheels on your vehicle were aligned and balanced carefully atthe factory to give you longest tirelife the and best overall performance. In most cases, you will need tohave your wheels not aligned again. However, you noticeunusual tire wear if or your vehicle pulling way or the other, one the alignment may need to reset. If you notice your be vehicle vibrating when driving a smooth road, your on wheels may need to be rebalanced. 6-41