1998 Chevrolet Astro Owner's Manual - Page 306

NOTICE: (Continued) Tire Inspection and Rotation Tires should be rotated every 6,000 to 8,000 miles ( 10 000 to 13 000 km). Any timeyou notice unusual wear, rotate your tiresas soon as possible and check wheel alignment. Also checkfor damaged tires or wheels. See "When It's Time for New Tires" and "Wheel Replacement'' later in this section for more information. The purpose of regular rotation is to achieve more uniform wear for all tires on the vehicle. The first rotation is the most important. See "Scheduled Maintenance Services" in the Index for scheduled rotation intervals. much air (overinflation), If your tires have too you can get the following: 0 Unusualwear Badhandling Roughride Needless damage from road hazards. When to Check Check your tires once a month or more. Don't forget yourcompact spare tire. It should be at 60 psi (420 kPa). How to Check Use a good quality pocket-typegage to check tire 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 valvecaps back on the valve stems. They help prevent leaks by keepingout dirt and moisture. 3 When rotating your tires,always use the correct rotation pattern shown here. 6-44