BoBDoG2o02

I have Been using Marvel Mystery oil on my guns and other household items for about 5 years now. It works great on my guns. Anyone else use this on Firearms? +/- results?

SmuvBoGa

I have used (& still use) both. Both are outstanding THIN oils - they creap, crawl, & soak into cracks. They are NOT for rust prevention BUT will help remove rust - also both are great for running cleaning patches thru your barrel, so is Ed's Red mix FWIW.
To me MMO is available in auto stores & Wall Mart : Kroyl isn't - has to be mail ordered (Midway, etc).

John Mc

stuart9534

I have been using MMO in my autos for many years with good results, I have never thought to use it on my firearms. It cleans very well, so I guess ill have to try it. does anyone know of any adverse effects it may have on bluing?

BoBDoG2o02

its always been friendly to my bluing. it gives me silky smooth actions and slides.

EdD270

How does MMO compare to BreakFree CLP? I've used BreakFree CLP for many years and love it.

enderwig

Never used it on my guns, but it's whats in my oil can in the garage. I might have to give it a go.

BoBDoG2o02

For one it smells alot better!!! Lol!! I hate the way break free smells. MMO is also a little easier to manage. I put mine in a needle oiler and it goes where i want it. It creeps well but doesnt ooze everywhere like CLP. MMO isnt a rest preventative like CLP. It works great as a lubricant though. A little of this stuff goes a long way.

Try it, you wont be dissappointed.

Raminator

If you really want to free up a stuck action, use Valvoline 15W-40. I was shooting my FN FAL after having it refinished. Well, the finish made it hard to cycle until it wore in a bit. But it was a heck of a time. My usual gun oil wasn't working, so I took the whole thing apart and used what I had on me at the time - Valvoline!

Freed that sucker right up and she was a smooth runner from then on!

shaner

i use MMO for my car for many years, truthfully i was told by a oil salesman its a transmission fluid based product , thats why it cleans so well, never used it as a gun lube but i have and still do use mobil-1 synthetic oil for my auto guns wont break down with the heat like protroleum based oils 5bucks a qt lasts a longtime

RugerGP100

Not on guns but have been using this stuff for over 30 years! I grew up seeing this stuff used and well, you just use it yourself after so many years of seeing it used.

kwg020

It's my understanding that Break Free has some teflon in it to reduce friction and the MMO does not. I think MMO is a much better cleaner but the smell causes my wife and daughter to get head aches. kwg

Ed Zachary

I've been using MMO for a few years. Mostly as a penetrating oil (works when WD-40 won't), parts and carb cleaner, and as a fuel additive and stabilizer.

Boss Lady calls it "cherry juice for the rides".

I use it or silicone as a lightweight lubricant.

DocTone

Have yet to, but now I will. Have used in gasoline, I would imagine it's solvents will clean a barrel very well. I has corrosion inhibitors and smells so sweet.

counterfitter

great idea i'll give it a try , thanx

markasaurus

"Marvel Mystery Oil is a light viscosity naphthenic oil (roughly
equivalent to an SAE 3W), with about 20 percent solvent (probably
mineral spirits), dye, wintergreen for smell, and 790 ppm of
phosphorous additive...
MMO contains no dispersant to hold dirt in suspension... therefore
dilutes the dispersant in the oil. MMO dilutes the viscosity index
of a multi-viscosity oil, thereby making it less resistant to
temperature [changes]...

"Mystery History.
"Marvel Mystery Oil was formulated shortly after World War I by
an automotive engineer named Burt Pierce, the man who invented
the Marvel carburetor, the standard automobile carburetor of its
time... GM bought up the rights to the carb and hired Pierce as a
consultant.
"The Marvel carbs were susceptible to clogging by lead and contam-
inants, so Pierce cooked up a mixture of light oil and various
chemicals to clean out the carbs... In 1923, Pierce went out on
his own and incorporated as Marvel Oil. He began selling his
'mystery oil'... claimed to be a universal lubricant and cleaner,
'one for all, and all for one.'"

Re: Marvel Mystery Oil

You could do worse but i'd use engine oil before i'd use MMO. I have used it plenty on engines, its designed to be mixed with gas or oil to do what it does. Its a good lubricant of sorts but in my opinion too light in viscosity, no anti wear additives and not enough cling for firearms and bound to get thrown off or blown out right quick, so personally i just would not use it unless i had nothing else.