1998 Buick Century Owner's Manual - Page 253

r Never use oil or grease on studs or nuts.you 1 If do, the nuts might come loose. Your wheel could fall off, causing a serious accident. A CAUTION: Replace the wheel nuts with the rounded end of the nutstoward the wheel. Tighten each nut by hand until the wheel is held against the hub. 9. Lower the vehicle by turning the jack handle tothe left. Lower the jack completely.