Well guys for about the last month I have been using Mobil 1 for my gun oil. The only reason being I am the assistan manager at a Lube Center, and I can get it for free. So far it has exceeded my expectations, its some great stuff. I figure if you can use it 15,000 mile in you motor why not my gun. My question to yall is what do you think about me using motor oil, I am positive that Im not the first to do so. So anyones thoughts are apreciated.