1995 Oldsmobile Aurora Owner's Manual - Page 268

When it's Time for New Tires One way to tell when it's time for new tires is to check the treadwear indicators, which will appear when your tires have only 1/16 inch ( I .6 trim) or less of tread remaining. Buying New Tires To find out what kind and size of tires you need, look at the Tire-Loading Inforrnation label. The tires installed on your vehicle when it was new had a Tire Performance Criteria Specification (TPC Spec) nu~nber each tire's sidewall. When you get new tires, on get ones with that same TPC Spec number. That way, your vehicle will continue to have tires that are designed to give proper endurance, handling, speed rating, traction, ride and other things during normal service on your vehicle. If y o ~ tires have an all-season tread ~r design, the TPC number will be followed by an "MS" (for mud and snow). 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 origiml tires. I You need a new tire if: a You can see the indicators at three or more places around the tire. a You can see cord orfabric showing through the tire's rubber. a The tread or sidewall is cracked, cut or snagged deep enough to show cord or fcbric. a The tire has a bump, bulge or split. 0 The tire has a puncture, cut, or other damage that can't be repaired well because of the size or location of the damage. 6-38