1998 Buick Riviera Owner's Manual - Page 283

When It's Timefor NEWTires Rust or dirt a wheel, or on the parts to which on it is fastened, can make wheel become loose nuts and after a time. The wheel could come off cause an accident. When you change wheel, remove a any rust or dirt from places where the wheel attaches to the vehicle. In an emergency, youcan use a cloth or a paper towel todo this; but be sure to use a scraper or wire brush later, if you need to, to get all the rust or dirt (See off. "Changing a Flat Tire" in the Index.) Yim need a new tire if any 6f the following statements are m e :