1996 Pontiac Sunfire Owner's Manual - Page 263

If you ever replace your tires with those not having a TPC Spec number, make sure they are the same size, load range, speed rating and construction type(bias, bias-belted or radial) as your originaltires. Uniform Tire Quality Grading The following information relatesto the system developed by the United StatesNational Highway Traffic Safety Administration, which grades tiresby treadwear, traction and temperatureperformance. (This applies only to vehicles sold in the United States.) The grades are molded on the sidewallsof most passenger c a ,tires. The Uniform Tire Quality Grading system does not apply to deep tread,winter-type snow tires, tires with space-saver or temporary use spare tires, nominal rim diameters of 10 to 12 inches (25 to 30 cm), or to some limited-production tires. While the tires available on General Motors passenger cars and h g h lxucks may vary w& respect 10 &ese I A CAUTION: Mixing tires could cause you to lose control while driving. If you mix tires of different sizes or types (radial and bias-belted tires), the vehicle may not handle properly, and you could have a crash. Using tires of different sizes may also cause dmmige h p l L F velmida Be m e h use fie Sam& size and type tires on all four wheels. It's all right to drive with your compact spare, though. It was developed for use on your vehicle. grades, they must also conformto Federal safety requirements and additional General Motors Tire Performance Criteria (TPC) standards. 6-40