1998 Chevrolet Blazer Owner's Manual - Page 312

I NOTICE: (Continued) If your tires have too much air (overinflation), you can get the following: Unusualwear Badhandling Roughride Needless damage from road hazards. When to Check Check yourtires once a month or more. Also, check the tire pressure of the spare tire. If you have a compact spare tire, itshould be at 60 psi (420 Wa). I Tire Inspection and Rotation Tires should be rotated every 6,000 to 8,000 miles (10 000 to 13 000 km). Any time you notice unusual wear, rotate your tires as soon as possible and check wheel alignment. Also check for damaged tires or wheels. See "When It's Time New Tires" for and "Wheel Replacement" later in section for this more information. The purposeof regular rotation is achieve more to uniform wear for all tires on the vehicle. first The rotation is the most important. "Scheduled See Maintenance Services'' the Index for scheduled in rotation intervals. How to Check Use a good quality pocket-type gage check tire to pressure. You can't tell if your tires are properly inflated simply by looking at them. Radial tires may look properly inflated even when they're underinflated. Be sure to put the valve caps back the valve stems. on They help prevent leaks by keeping out dirt and moisture. 6-42