I see there are other systems out there that are supposed to do the same thing as the Pre-Luber. Some systems cost less, but don't appear to be as effective.

I am wondering how long it actually takes for all the oil around the bearings to actually drain out or dry up? As close as the fit is, I don't really see how "all" the oil can possibly drain out from around the bearings? It seems for some reasonable time, there should be some oil between the mated surfaces even if the oil has basically drained from the open surfaces. I suppose if left long enough the oil between the mated surfaces either dissipates or turns to a gummy substance.