1995 Chevrolet Lumina Owner's Manual - Page 236

When It'sTime 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 (1.6 mm) or less of tread remaining. The tire has a bump, bulge or split. The tire has a puncture, cut, or other damage that can't be repaired well because the size or location of of the damage. Buying New Tires To find out what kind and size of tires you need, look at the Tire-Loading Informationlabel. The tires installed your vehicle when was new had on it a Tire Performance Critei-ia 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 tires that are designed to give proper endurance, handling, speed rating, traction, ride and other things during normal service on your vehicle. your tires have all-season tread If an design, the TPC number will followed by an be "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 original tires. You need a new tire if: 0 You can see the indicators three or more places at around the tire. 0 The tread or sidewallis cracked, cut or snagged deep enough to show cord fabric. or 6-38