1999 Buick Riviera Owner's Manual - Page 225

yellowblue 9. 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. If a nut cannot be tightened by hand, use the wheel wrench and see your dealer right away. CAUTION: Never use oil or grease on studs 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. 5-23