1997 Buick Century Owner's Manual - Page 305

Tire Inspection and Rotation Tires should be rotated every 6,000 to 8,000 miles (10 O00 to 13 OOO km). Any time you notice unusual wear, rotate your tires as soon possible and check wheel as alignment. Also check for damaged tires wheels. or See "When It's Time New Tires" and'Wheel for Replacement" laterin this section for more information. The purposeof regular rotationis to achievemore on uniform wear for all tires the vehicle. The first rotation is the most important. See "Scheduled Maintenance Services" in the Index for scheduled rotation intervals. Don't include the compact spare tireyour tire rotation. in After the tires have rotated, adjustthe front and been rear inflation pressures shown on the Tire-Loading as Information label. Make certain that wheel nuts all are properly tightened. See "WheelNut Torque" in the Index. Rust or dirt a wheel, or on the parts towhich on it is fastened, can make wheel nuts become loose after atime. The wheel could come and cause off an accident. Whenyou change a wheel, remove any rust or dirt from places wherethe wheel attaches to the vehicle. In an emergency, you can use a cloth or a papertowel to do this; but be sure touse a scraper orwire brush later, if you need to, to get allthe rustor dirt off. (See "Changing a Flat Tire" in the Index.) When rotating your tires, alwaysuse the correct rotation pattern shown here...~ 6-39