RCU Forums - 5% nitro

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rcjerry

01-20-2004 08:53 PM

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.

Hobbsy

01-20-2004 10:16 PM

RE: 5% nitro

I think RedMax would ship you four Quarts.

Sport_Pilot

01-21-2004 07:53 AM

RE: 5% nitro

As would Tower and others.

Hobbsy

01-21-2004 10:30 AM

RE: 5% nitro

I checked the Tower site for this and unless I missed something, the only 5% they ship is four gallons.

Sport_Pilot

01-21-2004 10:42 AM

RE: 5% nitro

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

http://www.foxmanufacturing.com/store/shop.cfm?cat=Fuel

Hobbsy

01-21-2004 11:36 AM

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.

3d-aholic

01-21-2004 10:36 PM

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)--->

Carlos Murphy

01-28-2004 10:23 PM

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.

srayspencer

04-22-2013 07:24 AM

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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