I like LSA (lubricant-small arms) and have used it for many years. It is probably still available on line for around 10.00 a qt. It is an Army surplus item from the Viet Nam War. Also-lately, after reading other's experience, I am set to use some Mobil 1 motor oil on my auto loaders, especially. In my case, I have taken 20w-50 motorcycle specific oil that I drained from my MC, and then filtered through about 6 inches of paper. I ended up with about 3 qts of filtered $10.00 a quart oil. I have already used it around the house some, hinges and such, and wow, it is slick stuff. I figure it should be fine on an auto rail, etc, and what's nice is that the hotter it gets, the thicker it gets! Flapjack.