remember having a tub in the auto shop, but don't really remember using it. Maybe on axle splines? was 30+ years ago. bearing grease was in a different tub. wiki says cv joints, but i don't ever remember breaking one open that i wasn't replacing!
Perhaps on propeller shaft splines?
http://en.wikipedia.org/wiki/Lithium_grease
interesting, it seems to have gone out of favor...would seem to be good for mtb, would not run at these temps, water resistant. guess the dried up thing would trump all of that....