No dog in this fight, and I admittedly live in an mostly arid climate------------the other end of the spectrum from SE AK, but I use CorrosionX in my triggers that see bad weather. I occasionally flush 'em clean with starting fluid then replace the C-X. Not sure if C-X qualifies as an oil or what, but it seems kind of caustic and very effective. I can't recall ever testing it in SUB-zero temps, but when it's that cold, I'm not worried about rust. Degreasing only takes a minute.
