You can really get carried away experimenting with different lubes, oils, etc. There seems to be an endless supply available, sometimes at crazy prices. I have tried then all and found standard 30 weight motor oil to be as good, or better, in most cases, than any of the other I've used. Shotguns are not high speed, high friction machines that require some exotic liquid miracle to keep them in first class working condition. It's just a hunk of steel that requires a good oiling now and then to keep the rust at bay and keep moving parts functioning.... Just my opinion... Dan Thome (Trap2)