I been using Mobile 1 for years. I was seeing store bough gun oils burning off an AK after running a few hundred rounds out of it and heating it up.
I used everything CLP Rem oil and oil that came in gun cleaning kits. I started using Mobile 1 it doesnt burn off like the others do.
Its been over ten years since I bought a quart. I think it was around $4 to $5 then. I use it in all my guns now.
Gun Owners of America Life Member