1995 Pontiac Grand Prix Owner's Manual - Page 261

NOTICE: (Continued) If your tires have too muchair (overinflation), you can get: 0 Unusualwear Badhandling Roughride 0 Needless damage from road hazards. Tire Inspection and Rotation Tires should be inspected every 6,000 to 8,000 miles (10 000 to 13 000 km) for any signs of unusual wear. If unusual wearis present, rotate your tiresas soon as possible andcheck wheel alignment. Also check for damaged tires or wheels. See "When It's Time New for Tires" and "Wheel Replacement" in this section for later more information. The purposeof regularrotation is to achieve more uniform wearfor all tires on the vehicle. The first rotation is the most important. See "Scheduled Maintenance Services" in the Indexfor scheduled rotation intervals. I P en to Check Check your tires once a month or more. ,Don'tforget your compact spare tire. It should beat 60 psi (420 kPa). n How to Check Use a good quality pocket-type gage to checktire pressure. Simply looking at tires will not tell you the the pressure, especially if you have radial tires -- which may look properly inflated even if they're underinflated. If your tires have valve caps, be sure to put them back on. They help prevent leaks by keeping out and dirt moisture. 6-48