I've got a very small assembly with two gears in it and shaft/roller bearing to the outside world on one end.
The other end is attached to a gear box full of oil.
Oil tents to get into the little assembly and weep out through the shaft/roller bearing.
Didn't used to do that before I put too much oil in the gearbox. Word I got was that the excess oil dissolved the grease that was packed into the assembly. No way of finding out what the original grease was.
Now I've got the thing apart and am ready to repack it. Tried pouring some of the oil on some silicone stuff from NAPA and it seemed to dissolve it all too easily.
My understanding is that most greases are just oil mixed with some sort of goop to give it body. Given that, it seems like oil should dissolve most greases.
Anybody know of an exception? Some that are slower to dissolve than others?