1993 Oldsmobile Achieva Owner's Manual - Page 248

Service & Appearance Care Buying New Tires To find out what kind andsize of tires you need, look at the Tire-Loading Information label. The tires installed on your vehicle when it was new had aTire Performance Criteria Specification (TPC Spec) number on each tire's sidewall. When you get new tires, get ones with that same TPC Spec number. That way? your vehicle will continue to have that tires are designed to give proper endurance, handling, speed rating, traction, ride and other things during normal service on your vehicle. If your have an alltires season treaddesign, the TPC Spec number will be followed by a "MS" (for mud and snow). If you ever replace yourtires 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 original tires. rn Uniform Tiire Quality Grading r A 246 - The following information relates the to system developedby the U i e States ntd National Highway Traffic Safety Administration which gradestires by treadwear, traction and temperature performance. (This applies only to I CAUTION vehicles sold in the U i e States.) ntd 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. Be sure to use same size the and type tires onl four wheels. al It's al right to drive with your l compact spare, though. It was developed for use on your vehicle.