Marvel Mystery Oil as Cleaning Solvent for Guns?

GF3

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Dec 28, 2025
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Back in the day I would add 8 oz. of MMO about 50 miles before changing oil in my air cooled VW. You wouldn't believe the crap which comes out, black, black oil, full of carbon deposits. So, I tried using MMO as a solvent on my AK. WOW! Carbon just melts off and it is even better than CLP. Of course MMO is much, much cheaper. MMO has a component which fights rust and another for lubrication. I don't care so much about lubrication as I wipe it as dry as possible so as not to mix with the grease I use.

Has anyone tried this? There are a couple videos on YouTube showing this as a gun cleaning product.
 
I've heard of people doing this but I never really tried it, wasn't sure how safe it is. Guess it's time to try it :)
 
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