[Thumper]

Not sure what your point is here.

Oils don't melt?

Well oil is already liquid at room temp. Oils can congeal if you cool them to refrigerated temps, then warm them up to room temp and they melt again. Greases melt at higher temps.

But as I have stated, lithium greases stick better to metal. Even AFTER they liquify. So they persist longer than gear oil.

Lithium grease can trap more debris (as some have noted), but you can spray off the debris and the Lithium grease still maintains a coating pretty well. It just sticks better.