1998 Buick Riviera Owner's Manual - Page 232

dirt 7. Remove any rust or from the wheel bolts, mounting surfaces and spare wheel. Never use oilor grease onstuds or nuts. If you do, the nuts might come loose. Your wheel could fall off, causing a serious accident. 8. Place the spare on the wheel-mounting surface. ~ Rust or dirt on the wheel, on theparts to or which it is fastened, make the wheel nuts can become looseafter a time. The wheel could come off and cause an accident. Whenyou change a wheel, remove anyrust or dirt from the places where the wheel attaches to the vehicle. In an emergency, youcan use a cloth or a paper towel to do this; be sure to use a scraper or wire but brush later, if you need to, to get all rust or the dirt off. 5-27