1997 Buick Regal Owner's Manual - Page 268

6. Remove any rust or dirt from the wheel bolts, mounting surfaces and spare wheel. Never use oil or grease on studs or nuts.you If do, the nuts might come loose. Your wheel could fall off, causing a serious accident. 7 . Replace the wheel nuts with the rounded end of the nuts toward the wheel. Tighten each nut by hand until the wheel is held against the hub. , Rust or dirt on the wheel, or on the parts to which it is fastened, can make the wheel nuts become loose after time. Thewheel could come a off and cause an accident. When change a you wheel, remove any rust or dirt from the places where the wheel attaches to the vehicle. In an emergency, you canuse a cloth or a paper towel to do this; but be sure to use a scraper or wire brush later, if you need to, to get all the rust or dirt off. 5-32