ArmySon is correct I have the video and they do recomend simple green.I used it on my gold combat and it worked great.Except I noticed that my trigger on the chrome sides started to rust in like the pit marks but you would never see them with your eye until the rust started appearing.Has this happened to anyone else?This is the only part that started to rust on a complete disassembly.And no I didn't let it sit long in the water.