Originally Posted by woodmaster81
There is nothing special about synthetic motor oil, use it as you would any other oil.

I've begun using 0w20 Mobile 1 synthetic as a gun lube. It seems to resist thickening up in cold weather better than other oils. Oil may not be overly important to use in a bolt action rifle but it can be important with semiauto shotgun as some do not like to be run dry. The 0 weight rating keeps it viscosity well below zero so far. As I tend to have a quart or two in the truck emergency box, it is always around if I need it.

I have a fair bit of "gun specific" oil around but the light weight synthetic motor oil seems to be at least as good as well as being much cheaper.


I know a couple of gunsmiths that swear by Mobile 1 for Gun oil. I need to try it on my 1911’s.

Just think how long one quart would last.

Last edited by chlinstructor; 08/25/20.
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