I like Slip 2000 EWO if I can find the bottle. If not, I grab what's within reach, like Hoppe's Gun Oil. Some here will remember Frog Lube which does provide excellent corrosion protection. I ended up with a giant can of the stuff and use it on dies, tools, and two fence gates. I can't speak intelligently about lubing AR's except to keep them wet. My humble opinion is that everything else can be maintained with regular oil like thin Mobil 1, Hoppe's or 3 in 1. I confess to having bought high dollar gun oils. Once I gave money to women too.🤗.
People who get oil off their dip stick are showing out. I've seen that more than once.