I am lost at to why gun specific oil cost so much. I like SlIP 2000, but doubt I would notice a different between other kinds. Also hear great things about fire clean. I'll most likely just use motor oil next time I need to get lube. Or my park tool oil, i'll assume it does the something...might not work so great with heat though. Frog lube had me intrigued, but again cost and the whole process is kind meh.