I use ATF for my firearms, and I use it with moderation. Works well for both cleaning and lubrication, readily available and relatively inexpensive. Since it doesn't gel until -50, it works even on those coldest hunting days here in Wisconsin. Still, for the most part, oil is oil, and when used within it's intended parameters and with moderation, almost anything will work, and as we have seen, almost anything will have it's fanboys and it's haters.