[rickomatic]

I’ve heard of using automatic transmission fluid.

ATF is part of the formula for the homemade gun cleaner/lubricant "Ed's Red". Hence the "red" part. It's been years since I mixed any up, because I made enough to last a loooooooong time. I'm thinking Kerosene, ATF, and maybe Acetone? I'll have to look it up again to be sure.

[Axenolith]

I’d watch using anything with acetone in it on any component of synthetic/plastics.

[ArrogantBustard]

Ed’s Red = equal parts each of ATF, kerosene, paint thinner and acetone.

Conveniently, those can all be gotten in quart quantities, to make 1 gallon.

I have used it to clean numerous guns with both polymer and wood furniture (including Glocks) ... never had any trouble with the acetone eating the plastic.