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Thread: Marvel Mystery Oil????

  1. #1
    JBUSAF
    Sorry, probably the wrong forum for this, but what are the thoughts on using 1 Qt. of Mystery oil in the crancase on a rebuilt 350 in a Suburban? I am thinking about using it after the 500 mile break-in oil change. I always used it in the past but not on anything brand new or rebuilt. Engine builder said no Mobile 1 for the first 12,000 miles, but does not know about the mystery oil.
    Thanks
    John B.

  2. #2
    76BARRON
    I can't answer that one, but I have alot of good things about MMO and most all of it GOOD!

  3. #3
    GofastRacer
    Well no experience with oil, but I use it in gas and it works great!..

  4. #4
    Jet City
    I use MMO too, but I'm not sure I follow the benifit of using it in the crankcase of a new engine, although it probably wouldn't hurt either. You'd do well to ask that question on this site here http://www.bobistheoilguy.com/ , there are some very knowledgable guys about oil on that site.

  5. #5
    Senior Member
    Join Date
    May 2009
    Posts
    1,143
    like art said i put in the av fuel and never had any trouble.

  6. #6
    GofastRacer
    like art said i put in the av fuel and never had any trouble.
    I love it because it keeps the throttle shafts in the injectors and the lines lubricated, and the pump too not to mention valve guides!..

  7. #7
    moneysucker
    I use it in my C-12. Works good.

  8. #8
    JBUSAF
    Thanks, got more info from the builder, will be using it after the 500 mile oil change.
    Have a great day!

  9. #9
    058
    Works good in air tools too.

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