1996 Buick Skylark Owner's Manual - Page 220

I. Remove any rust ordirt from the wheel bolts, mounting surfacesand spare wheel. A CAUTION: 6 . Remove the wheel cover from the wheel, if your vehicle has them. Then take the flat tire. off Rust or dirton the wheel, or on the parts to which it is fastened, can make the wheel nuts become loose after a time. The wheel could come off and cause an accident. Whenyou change a wheel, remove any rust or from theplaces dirt where thewheel attaches to the vehicle. In an emergency, you can use a cloth or a paper towel to do this; be sure touse a scraper orwire but brush later, if you need to, to get all the rust or dirt off. 5-27