1997 Chevrolet Cavalier Owner's Manual - Page 288

Temperatul~ ~~ iB,C , The temperature grades are A (the highest), B, and C, representing the tire's resistance to the generation of heat and its ability todissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reducetire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passengercar tires must meet underthe Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higherlevels of performance on the laboratory test wheel than the minimum required law. by Warning: The temperature grade for this tire is established for atire 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. Scheduled wheel alignment and wheel balancing are not needed. However, if you notice unusual wear or tire your vehiclepulling one way or the other, alignment the may need to be reset. you notice your vehicle If vibrating when driving on smooth road, your wheels a may need to be rebalanced. Wheel Replacement Replace any wheel that bent, cracked, or badly rusted is or corroded. If wheel nuts keepcoming loose, the wheel, wheel bolts and wheel nuts should be replaced. If the wheel leaks air, replace it (except some aluminum wheels, which can sometimes repaired). See your be Chevrolet dealer if any of these conditions exist. Your dealer will know the kind of wheel you need. Each new wheel should have same load-carrying the capacity, diameter, width, offset and be mounted the same way as the one it replaces. If you need to replace any of your wheels, wheel bolts or wheel nuts, replace them only with new GM original equipment parts.This way, you will besure to have the right wheel, wheel bolts and wheel nuts your for Chevrolet model. Wheel Alignment and Tire Balance The wheels on your vehicle were aligned and balanced carefully at thefactory togive you the longest tirelife and bestoverall performance.