1997 Buick LeSabre Owner's Manual - Page 288

When to Check Check your tires once a month more. or Don't forget your compact spare tire. It should be at 60 psi (420 kPa). Maintenance Services" in the Index for scheduled rotation intervals. I L How to Check Use a good quality pocket-type gage to check tire pressure. You can't tell if your tiresare 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 on the valve stems. They help prevent leaks keeping outd r and moisture. by it 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 or wheel alignment. Also check for damaged tires wheels. See "WhenIt's Time for New Tires" and "Wheel Replacement" later in section for this more information. The purposeof regular rotation is to achieve more uniform wear for all tires on the vehicle. The first rotation is the most important. See "Scheduled When rotating your tires, always usethe correct rotation pattern shown here. Don't include the compact spare tire your tire rotation. in After the tires have been rotated, adjust the front and rear inflation pressures as shown on the Tire-Loading Information label.Make certain that all wheel nuts are properly tightened. See "WheelNut Torque'' in the Index. 6-40