Originally Posted by slow rollin

I like using atf+acetone to loosen up derailleur pivots without removal and other pivots. Yes it may be wrong but I have a stash of the stuff from long gone cars, and all cars take weird atf variations now-a-days. IMO just try it out, if you don't like it go use something else. Oh, and I used gear oil in my freewheel. Maybe an evil play but it works nice and I don't mind the smell.
Admittedly my last bike was 40usd and I ride and use sub-optimal equipment/lubrication.