1993 Pontiac Trans Sport Owner's Manual - Page 254

Warning: The temperature grade for this tire is established for a tire that is The wheels on your vehicle were properly inflated and not overloaded. aligned and balanced carefully at the Excessive speed, underinflation,or factory to giveyou the longest tire life excessive loading, either separatelyor in and best overall performance. combination, can cause heat buildup In most cases,you will not needto have and possible tire failure. your wheels aligned again. However, if Those grades are molded on the you notice unusual tire wear your or sidewalls of passenger car tires. vehicle pulling oneway or the other, the alignment may need to be reset. If you While the tires available as standard or optional equipment on General Motors notice your vehicle vibrating when driving on a smooth road, your wheels vehicles may vary with respectto these may need to be rebalanced. grades, all such tires meet General 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 Wheel Replacement Replace any wheel that isbent, cracked or badly rusted. If wheel nuts keep coming loose, the wheel, wheel bolts, and wheel nuts should replaced. If be the wheel leaks air out, replace it (except some aluminum wheels, which can sometimes be repaired).See your Pontiac dealer if any of these conditions exist. Your dealer willknow the kind of wheel you need. Each new wheel should have the same load carrying capacity, diameter, width, offset, and be mounted the same as way the one it replaces. If you need to replace any your of wheels, wheel bolts, wheel nuts, or replace them only with new GM original equipment parts.This way, you will be sureyou have the right wheel, wheel bolts, and wheel for your nuts Pontiac model. 253