[Hectic]

The medium stuff is "grenade oil" for the tornado (and perhaps the new one as well)
I also use that stuff periodically to condition mags and compression parts on pistols and rifles. I'll just drop a drop or two into all the openings that lead to seals (so into the top of the mag with the valve pressed open, into the bbu or "bolt" area and then fire a few shots. The thicker stuff imo helps by staying in place on the rubber bits and filling any imperfections. You can also buy rc shock oil in a bunch of wt. In larger bottles.
Then for the ultra slick. I use the multi purpous synthetic. It's good for metal to metal or metal to plastic wear/contact points. To reduce friction and wear. And good in airseal parts like when you put a new piston o ring or whatnot.