Interesting question, looking for some answers. Does Wheel Bearing Grease go bad?...like when its sitting on the shelf? I am doing some wheel bearings on a ford expedition and gotta repack the bearings. I have a half empty tub of CRC Wheel Bearing Grease that is maybe 16-17 years old. Its been sealed in the tub, sitting in my cabinet. Has it gone bad? Can I still use it? There is no separation of the grease, its just old and have had it for a long time, now i gotta use it. Should I use it, or buy a new tub of grease?