I've used a ton of different stuff. FP-10, Slip 2000 EWL, Break Free, MPro 7, Lucas Gun Oil, Hoppes Oil, ATF, Mobil 1, various greases like Lucas Red N' Tacky, Redline CV-2, and Super Lube, Triflow... even some engine assembly lubes like Torco, Comp Cams, and Lucas. Still waiting to try Weapon...