Ridemalibu Motorcycle Rentals & Tours – Los Angeles CA
  1. Ciao Guest - You’ve landed at the ultimate Guzzi site. In SoCal? See the Service tab above for the best in service, tires, tuning and installation of our products or custom work. NEW REGISTRATIONS REQUIRE EMAIL ACTIVATION - CHECK YOUR SPAM FOLDER. ALWAYS TRY A SEARCH BEFORE STARTING A NEW TOPIC - AND PLEASE DON'T BE A DRIVE-BY POSTER: Most questions you may have are well answered on the Forum. As a common courtesy, check back if you are posting elsewhere on the web. There is zero tolerance on personal attacks and off-site links to other Forums or competing products. Note there's decades of Guzzi hands-on experienced help on this site, all whom give endless amounts of their time for free - be courteous. Also be sure to click on the Store link also above for our 600+ product inventory, including many of our 100% Made-in-house-USA GTM products and engine kits. We are still mostly a one man operation (not Amazon), so thanks in advance for your patience on orders. We do our best to get things out as quickly as possible, and we also aren't in control of things like customs & weather delays, etc. PLEASE refrain from emailing about your order Status, as you will get an email with tracking info when your order goes out; Email inquiries on orders slows everything down. Orders are currently being shipped once or twice a week. You can always sign into the online Store system to check the status. Please refrain if at all possible about emailing for an update; If you must ask for order info, please reply on the actual order email. You will get shipping info when it goes out via our online Store system (check your Spam folder), and if you want to cancel your order, please notify us direct email (do not post or use the Forum) and allow 7-10 business days for a reply BEFORE disputing the charge. We don't want your money if we can't deliver. Special order items are subject to a 15-20% cancellation fee. We cannot answer questions direct unless it’s about something on the Store or that you have purchased from us. We do NOT have a phone number - We are online only - Do not email and tell us to call you. You will find us highly responsive via email on the Contact page with any questions on our products (only). We appreciate the consideration, understanding and your business... past and future. Also be sure to see our GTMotoCycles.com custom BUILDS tab above.

Marvel Mystery Oil

Discussion in 'V7/V85/V9 Chat & Tech' started by Larry Vance, Jun 23, 2016.

  1. Larry Vance

    Larry Vance Tuned and Synch'ed

    Joined:
    Jul 21, 2014
    Messages:
    87
    Likes Received:
    5
    Location:
    Connecticut
    Has anyone used this as a fuel additive for cleaning the fuel injectors? Met a long time Ducati owner who swears by the stuff.

    Thanks
     
  2. sign216

    sign216 High Miler

    Joined:
    Jun 14, 2009
    Messages:
    871
    Likes Received:
    31
    Location:
    Eastern, Massachusetts
    I've used it on the outside of the engine. Used with aluminum foil, to clean old corrosion.
    As for inside the engine, I like the idea, but intellectually I think it's snake oil.
    Although the idea of adding it just before an oil change to loosen things up seems like a good idea.

    Actually the injectors are easy to remove and send out for a real analysis and cleaning.
     
  3. john zibell

    john zibell Moderator Staff Member GT di Razza Pura

    Joined:
    Oct 28, 2008
    Messages:
    7,645
    Likes Received:
    676
    Location:
    Huntsville, AL
    I often see references for MMO on a Model T forum to lubricate valves stems when mixed with fuel. Many there agree it is snake oil, some swear by the stuff. As for injectors, you are better off occasionally adding some sea foam to your fuel, or stick with top tier fuels that have sufficient cleaning agents.
     
  4. Trout

    Trout GT Reference

    Joined:
    Feb 27, 2010
    Messages:
    1,221
    Likes Received:
    384
    Location:
    Gainesville
    I've seen people dribble it in the carb (mostly on cars & trucks) with the engine running about 2000 rpm to clean the carbon off valves & pistons. One guy would slowly increase the amount he poured in until the engine started to choke then he would splash in a bunch & let the engine die. He'd go off & smoke a Camel, come back get the car started and race the engine until it cleared out & would idle again.
    I used to dump a little in the fuel tank of my old Ambassador thinking it might be a little extra lube, didn't ever hurt it but don't know if it helped.
     
  5. sign216

    sign216 High Miler

    Joined:
    Jun 14, 2009
    Messages:
    871
    Likes Received:
    31
    Location:
    Eastern, Massachusetts
    I go out of my way to get top tier fuels. Not sure if it really matters, as when I pulled my low mileage V7 heads they did not look clean at all.

    I'm thinking about investing in race gas for my bike, although my wallet begs for mercy.
     
  6. sib

    sib Cruisin' Guzzisti

    Joined:
    May 12, 2013
    Messages:
    297
    Likes Received:
    60
    Location:
    Providence, RI
    I go out of my way to get the cheapest fuel available. I've never had injector problems on my motorcycles (over 21,000 mi) or on my cars (probably over 500,000 mi). I consign Marvel Mystery Oil and its kin to the mytholoogy department, along with magnetic fuel enhancers.
     
    Trout likes this.
  7. Trout

    Trout GT Reference

    Joined:
    Feb 27, 2010
    Messages:
    1,221
    Likes Received:
    384
    Location:
    Gainesville
    Growing up in a small city of 600 people & being the main "wrench" in the area I got to know people, their cars & their habits.

    Oils? Fuels? Additives? At some point I had the heads off & many times the pans off most of the machinery that lived in the area. Irrigation pumps to hi-perf car & marine engines with tractors & weed wackers thrown in. Never liked the 2-strokes.

    In the 50's until the late 70's fuels & oils may have made a difference, in today's world not so much.
    Octane ratings are probably one of the least understood things out there.
    Hi octane does not make an engine run, faster, better or cleaner but the idea behind it sells a lot of fuel.
     
  8. abbienormal

    abbienormal High Miler GT Famiglia

    Joined:
    Nov 29, 2008
    Messages:
    907
    Likes Received:
    105
    Location:
    Niles, OH
    I agree on the high octane to a degree. Past experience on certain vehicles shows a marked difference. I put regular in my 2007 Norge when I had it and then go find the little kid that dropped a bag of marbles in my engine. The knocking was very loud. I have not tried it on my 2012. My Mini Cooper JCW calls for premium and runs ok on regular but the 2 times I tried it I lost 3-5mpg. I have a low compression ratio Honda Pacific Coast. I put regular in it a couple times. It seems to run ok but on start up it is not happy. I have only heard it backfire (I know, afterfire) out the exhaust upon starting when it had the regular in it. I see no reason it should not like regular but it doesn't. I used to not care because what was $0.20-$0.25 a gallon? Now it is between $0.40 and $0.70 a gallon extra and I am not particularly pleased with that.

    As for Marvel Mystery Oil and other such stuff I am not a fan but I was big doubter of all the claims people made of Sea Foam. My Mini was starting rough and sounded like clogged injectors so I dumped in a can. It cleared up and ran fine. So I am somewhat of a convert there. Since it can be used a fuel preservative I have put it in my bikes for the winter,
     
  9. drlapo

    drlapo Tuned and Synch'ed

    Joined:
    Jun 23, 2014
    Messages:
    41
    Likes Received:
    7
    I've used MMO successfully for decades.
    The most dramatic benefit was realized when we added a few ounces to a friend's gold wing because it had noisy lifter.
    It quieted the lifter and it stayed quite
    It's also good as a gun oil as it doesn't gum up
     

Share This Page