1994 Oldsmobile 88 Owner's Manual - Page 213
1994 Oldsmobile 88 Manual
Page 213 highlights
TREAD WEAR INDICATORS Tire Inspection and Rotation To make your tires last longer, have them inspected and rotatedat the mileages recommended in the Maintenance Schedule. See Schedukd Maintenance Services in the Index. Use this rotation pattern. After the tireshave been rotated, adjust the front and rearinflation pressure as shown on theTire-Loading Information label. Male certain that all wheel nuts are properly tightened. See Wheel Nut Torque in the Index. When It's Time for New Tires One way to tell when it's time for new tires is to check the treadwear your indicators, which will appear when tires have only %Z inch (1.6 mm) or less of tread remaining. You need a new tire i f You can see the indicators at three or more places around thetire. You can see cord orfabric showing through thetire's rubber. The tread or sidewall is cracked, cut or snagged deep enough to show cord or fabric. The tire has a bump, bulge or split. The tire has a puncture, or other cut, damage that can't be repaired well because of the size or location of the damage. 21 1