Marvel Mystery Oil?

Discussion in 'The Garage' started by Dr. Zombo, Sep 11, 2009.

  1. Dr. Zombo

    Dr. Zombo ADV Brewer

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    I have a neighbor who swears by this stuff. Uses it in his truck, lawn mower, 2 stroke weed whacker, etc. -- some in the gas tank, some as part of his oil changes.

    What's the real story on this stuff? Is it really a marvel?

    :deal <-- snake-oil salesman
    #1
  2. Waco

    Waco Renegade Sickle Hound

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    I've read lots of stories and they sound about as convincing as Slick 50 commercials.
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  3. rens

    rens F650gs, r90s, London UK

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    I use it regularly on my boat (which as a 1968 atomic 4) and its great for lay-up and recommissioning, but I don't get the people who want to add it to everything.

    I dont use it on the bike.
    #3
  4. Boatman

    Boatman Upward and onward!!

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  5. duckrider

    duckrider Been here awhile

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    I've used it for years to lube my air tools. Just a drop in the connector. I've had many of them for twenty + years so I'd say it's fine for air tools. I have no idea where I'd use it on a bike.
    #5
  6. usgser

    usgser Long timer

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    Years ago back when most of the vehicles(cars/trucks) I ran were from the 50's and 60's and folks weren't as anal about oil changes as they are now I used to use it a lot. I'd substitute one pint MMO in every oil change. Great for freeing up sticky lifters. Never used it in a bike though. But agree it's a great lube for air tools too.
    #6
  7. eric123

    eric123 Gott Mit Uns

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    Gas and oil maybe? I use it in all my bikes...I will try it in my air tools, sounds like a good idea...
    #7
  8. acejones

    acejones Long timer

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    Many years ago I worked in the assembly shop at a major chain saw manufacturer. We used MM in the air lines for our air tools and had very few tool problems. It is a great product for that application.
    #8
  9. biggziff

    biggziff Funk Soul Bruvah

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  10. Dr. Zombo

    Dr. Zombo ADV Brewer

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  11. biggziff

    biggziff Funk Soul Bruvah

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    :evil

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  12. Mista Vern

    Mista Vern Knows all - tells some.

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    +1

    FWIW, MMO has been a tradition in our family for a bajillion years, it hasn't hurt anything, the container is cool, and it's cheap so I will keep throwing a tables spoon in the tank of my bike - prolly isn't doing anything, but I reel better! :norton
    #12
  13. Toolman

    Toolman toolman

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    Marvel mystery oil makes the air tool oil for Snap-On Tools and other tool mfgs. Heres a thought about oiling your air tools. When do you oil them? Most people say they put a few drops in the air inlet when they are ready to use them. Wrong time! You should oil them right before you put them away. This way they are stored with oil inside instead of moisture from the air line!

    MMO is a good product with many uses much like WD40.

    Toolman retired after 26 yrs!
    #13
  14. KTMSER

    KTMSER Big bike friendly

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    Sounds like my dad.. I think he even puts it in his oatmeal...:lol3
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  15. Beezer

    Beezer Long timer

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    I have a 30 year career as an aircraft mechanic & this question comes up a lot. I contend that it does no harm and may have benefits. MMO is an old time product that was used on radial aircraft engines for an number of reasons.... such as relieving sticky valves (I have seen it work for this). I know more than a few pilots that use it regularly in the fuel & oil (on modern engines), and generally speaking these engines run strong and trouble free, with good compression all the way out to overhaul. I have a collegue that owns an aircraft engine shop & is pro MMO for the above reasons. Notice on the link above that the stated downside to MMO is that it might loosen too much residue. Couldn't it be said then, that if used regularly... you might not have residue in the first place?

    At any rate, it is quite popular in avaition even though it is not "approved" (by the FAA). I use it once in a while but am not a fanatic.
    #15
  16. Pike Bishop

    Pike Bishop Pull Down the Ponzi.

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    I use MMO and Lucas Fuel Treatment (a similar oil-like substance that you also use at a 400-to-1 ratio in the gas) in my GM 350 marine inboard.

    Rust and corrosion are an ongoing headache in boats, especially saltwater boats, and even more so now that we're using E-10 gasohol.

    I figure the MMO and Lucas snake oil can't hurt, and they just might help to keep my throttle-body injectors from gumming and other parts of my fuel system from rusting/gumming/clogging.
    #16
  17. Pike Bishop

    Pike Bishop Pull Down the Ponzi.

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    If you oil them after you use them, won't there ALREADY be water inside them? And won't the oil just "sit on top" of the water and not be distributed throughout the tool?

    On the other hand, if you oil them before using them, won't the compressed air help distribute the oil throughout the tool, and thus lubricate the moving parts, while acting as a film to protect the metal from the water that will accumulate in the tool as you use it?

    Not arguing...just askin'
    #17
  18. Uncle Ernie

    Uncle Ernie Long timer

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    I put an ounce in a full tank on my older bikes. I was told a long time ago that it helps lube the top end- not a bad thing on stinky old Beemers and such.
    #18
  19. Toolman

    Toolman toolman

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    If there is a excess moisture problem in the airlines I would put more than a few drops and flush it thru by blipping the trigger until I got oil instead of water out of the airtool exhaust. I would rather chase the water out with oil than viceversa.

    Toolman
    #19
  20. scorpion

    scorpion Two arm bandit

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    A friend of mine reccomended MMO to free a galvanic corosion weld on a old bicycle seat post stuck in the frame. I'll give it try.

    I was going to try Aerokroil but it's harder to find.
    #20