actually yes you can go wrong with it. I have had guys have problems with their g3, switch to a different grease and suddenly the marker is working great.
proof here http://www.pbnation.com/showthread.p...238&highlight=
I have some right in front of me and i can verify it. If your not having problems, fine. But others have with their DP spool valve guns. Ive been in the forum for a while i now, ive seen my fair share of cases like that.