RC Fuels Nitromethane, Castor Oil, Synthetic, heli fuel, 4 stroke, etc...Fuel Q&A is here!

5% nitro

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Old 01-20-2004, 08:53 PM
  #1
rcjerry
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Default 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.
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Old 01-20-2004, 10:16 PM
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Default RE: 5% nitro

I think RedMax would ship you four Quarts.
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Old 01-21-2004, 07:53 AM
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Default RE: 5% nitro

As would Tower and others.
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Old 01-21-2004, 10:30 AM
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Default RE: 5% nitro

I checked the Tower site for this and unless I missed something, the only 5% they ship is four gallons.
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Old 01-21-2004, 10:42 AM
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Default RE: 5% nitro

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

http://www.foxmanufacturing.com/store/shop.cfm?cat=Fuel
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Old 01-21-2004, 11:36 AM
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Default 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.
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Old 01-21-2004, 10:36 PM
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Default RE: 5% nitro

Quote:
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)--->
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Old 01-28-2004, 10:23 PM
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Default 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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Old 04-22-2013, 07:24 AM
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Default 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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