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Thread: 5% nitro


  1. #1

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    5% nitro

    It has been suggested that I run 5% nitro fuel thru my MDS engines. My hobby shop does not carry 5%, but they can order a case for me. All I need is a gallon or less to see if it solves my problems. My question is, is it easy to make my own fuel or can I use my 10% fuel and mix it somehow to get 5%. Please give full details, I don't know much at all about fuels.

  2. #2
    Moderator Hobbsy's Avatar
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    RE: 5% nitro

    I think RedMax would ship you four Quarts.
    Farmall 240 the final issue of the Farmall C, Super C, 200, 230 series.
    122 Cu. In. 22 hp. A small tractor that would do big work due to its 10x36 inch rear tires.

    As competition improves products, the differences between them get smaller and smaller

    Club Saito member #5

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    RE: 5% nitro

    As would Tower and others.
    Glow Head Brotherhood #15

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    Moderator Hobbsy's Avatar
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    RE: 5% nitro

    I checked the Tower site for this and unless I missed something, the only 5% they ship is four gallons.
    Farmall 240 the final issue of the Farmall C, Super C, 200, 230 series.
    122 Cu. In. 22 hp. A small tractor that would do big work due to its 10x36 inch rear tires.

    As competition improves products, the differences between them get smaller and smaller

    Club Saito member #5

  5. #5
    Sport_Pilot's Avatar
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    RE: 5% nitro

    Hmm, I am supprised. Well Fox sells fuel in quarts.

    http://www.foxmanufacturing.com/store/shop.cfm?cat=Fuel
    Glow Head Brotherhood #15

  6. #6
    Moderator Hobbsy's Avatar
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    RE: 5% nitro

    As a matter of fact Sport, that's what I use for the most part is Fox 5% with 20% 50/50 lube. Sometimes I have to wait a day or two extra for them to make it, but I don't wait until the last minute.
    Farmall 240 the final issue of the Farmall C, Super C, 200, 230 series.
    122 Cu. In. 22 hp. A small tractor that would do big work due to its 10x36 inch rear tires.

    As competition improves products, the differences between them get smaller and smaller

    Club Saito member #5

  7. #7
    3d-aholic's Avatar
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    RE: 5% nitro

    ORIGINAL: rcjerry

    It has been suggested that I run 5% nitro fuel thru my MDS engines. My hobby shop does not carry 5%, but they can order a case for me. All I need is a gallon or less to see if it solves my problems. My question is, is it easy to make my own fuel or can I use my 10% fuel and mix it somehow to get 5%. Please give full details, I don't know much at all about fuels.
    Remember if you dillute your 10% to get 5%, your dillute the oil as well if its just methanol. So you would need some FAI fuel (0% Nitro/ 80:20) I suppose.....PowerMaster sells that. http://www.powermasterfuels.com/fai.htm

    If you mix that in equal parts with your 10%, you'll end up with an average of 5% and an average blend of the castor with whatever you got now. So 1/2 gallon (your 10%) + 1/2 gallon (FAI)--->
    Hovering takes the Edge OFF.

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    RE: 5% nitro

    Are we talking MDS 148? If so, 5% is what you need. Most big glow engines don't like alot of nitro and my 148 rejected 15%, kept kickin off the prop.
    Same with Moki 180 and 210 engines but I'm not sure about OS 160's.
    Moki recomends 10% in cold weather only.

    You DO know that MDS has a new carb for the 148, solves all the dead-stick problems.

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    RE: 5% nitro

    I have Moki 180 & 210 engines. On hand I also have four gallons of Cool Power 5% fuel.

    I have conflicting instruction on whether to use only castor fuels - or - OK for synthetics?

    I have the recent plug recommendation of OS f glow plugs!



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