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HelicopterMain Discussion › Shelf-life for nitro fuel?
01-03-2010 12:40 AM  7 years agoPost 1
spaceman spiff

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Tucson

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How long can i expect an un-opened jug of nitro fuel to still be good?

I have a couple stored at room temp, no light, foil-sealed jug of Byrons 15%

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01-03-2010 12:42 AM  7 years agoPost 2
george0079

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USA

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4-5 years, easy. probably longer, depending on average daily temps

Hell... I can fix that.
Uh oh..
Nope.
It's ***ked!!!
RE-KIT!!!!!

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01-03-2010 12:54 AM  7 years agoPost 3
reddragon

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Brooklyn, N.Y.

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Agreed.

Wayne - Fly it like you stole it! You're in good hands with Runryder!

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01-03-2010 01:52 AM  7 years agoPost 4
GimbalFan (RIP)

rrProfessor

Big Coppitt Key, FL

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Humidity apparently also matters, and in Vegas (like Tucson) we're fortunate.

I recently discovered a case of CP 30% in a hall closet that's at least 3 years old. After reading an earlier thread here I figgered I should at least try it before tossing it, and it ran fine in my Hyper 50's. Haven't tried it in the 90 yet.

op-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-t

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01-03-2010 02:12 AM  7 years agoPost 5
spaceman spiff

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Tucson

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That's welcome news... I have a couple gallons of Cool power hidden away as well, more than a couple years old. Had written it off because i didn't want to chance it on a nice heli.

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01-03-2010 03:36 AM  7 years agoPost 6
dkshema

rrMaster

Cedar Rapids, IA

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Properly stored -- sealed, cool, dry place...pretty much indefinite.

Moisture and light are your enemies.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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01-03-2010 03:59 AM  7 years agoPost 7
bigdad390

rrVeteran

East. Liverpool, Ohio

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I was given a case of Byrons's 15% fuel recently from a neighbor who's husband passed away. The case still had the reicept in it dated over 15 years ago. the fuel worked perfectly in my Hawk Pro. I already run 15%, so I did not even have to change the needle valve more than two clicks. I think methanol and nitomethane is just like other alcohol and improves with age.

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01-03-2010 11:34 AM  7 years agoPost 8
Busher

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Manchester, England

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I have used fuel that is well over 5 years old and still it worked ok.

Good luck
Busher

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01-03-2010 11:40 AM  7 years agoPost 9
bopshi

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greenport ny

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Went to Red Max web site and Morgan. At one of those sites in thier frequently asked questions section they stated that as long as no water gets in the shelf life is 7 years. Dave

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01-03-2010 12:54 PM  7 years agoPost 10
heli-cuzz

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Pittston, Pa. USA

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C&P from Morgan Fuels

What is the shelf life of the fuel?

Unopened and stored in ideal conditions (between 60-80 degrees) it will remain usable for several (5-7) years. As the fuel begins to degrade it will increasingly lack the punch of new fuel. Really the only way to tell if the fuel is good is to run it. If it idles well and the transition is good on the ground, use it. You might notice a little less "bark" in a fuel that has been stored for several years but it won't hurt the engine.

Opened would vary according to how much moisture the fuel has sponged out of the air. A quick way to ruin a gallon of fuel is to drain your tank at the end of your flying day back into the fuel jug. What is happening is that your fuel is picking up moisture from the pressurized tank. The carburetor is sucking in humid air and after combustion the moisture laden air is entering into your tank via the tube from your muffler. When you return the fuel from your tank to your fuel jug you are contaminating the rest of the fuel in the jug.

My recommendation is to run your tank dry at the end of the day, but whether you do that or not don't return the fuel from your tank to your fuel jug.

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01-03-2010 09:36 PM  7 years agoPost 11
chopper_crazy

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Delphos, Ohio

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My thought is if fuel last longer than a month or two, your not flying enough

On a serious note, fuel lasts a long time just make sure you don't leave the plastic jugs on concrete floors. Concrete sucks the nitro right out of it and puts a lot of moisture in the jug.

It's a complex, costly, glow powered anti-gravity machine!

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01-03-2010 10:15 PM  7 years agoPost 12
GMPheli

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W. Bridgewater, MA USA

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I think what happens with the concrete is it is more of a temp conductor so the jug of fuel sees more temp fluctation which in turn causes the jug to expand and contract, or "breathe" in moist air if it is not totally sealed. My Dad would never put a car battery on concrete, always had to be on a block of wood or would you get it!!!

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01-04-2010 12:45 AM  7 years agoPost 13
Yug

rrMaster

UK. Herts

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Can't beat a good bit of woodie
A few days ago, I came across an early vintage US gallon of CP30; it tasted just great

Vegetable rights and Peace

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01-04-2010 03:45 AM  7 years agoPost 14
PC12DRVR

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USA

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Ive seen CP 30 run fine after 5 yrs of storage in gallon jugs sealed, cool basement temps.

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01-04-2010 06:06 AM  7 years agoPost 15
human213

rrVeteran

malibu

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15 year old CP30

Forgot I had this,
and only flying turbines for years now.

Ran perfect last week, 8 tanks; have cases of it left, time to burn it
in the four stroke omega.

m

Not everything that can be counted counts, and not everything that counts can be counted.

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01-05-2010 06:20 PM  7 years agoPost 16
dela

rrApprentice

Stillwater Oklahoma

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Properly sealed and protected from moisture, I don't see why your fuel shelf wouldn't last hundreds of years.

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01-07-2010 08:52 PM  7 years agoPost 17
kydreamsllc

rrApprentice

Frankfort, KY

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Fuel will survive the times. In the navy we stored nitro fuel on the aircraft carrier with plenty of moisture around with no difficulties.

Coming out of heli retirement...

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01-07-2010 08:58 PM  7 years agoPost 18
Terrabit

rrElite Veteran

Seattle, WA - USA

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I've read that exposure to sunlight is also undesireable.

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01-13-2010 12:38 AM  7 years agoPost 19
Master Rick

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The Moon

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IT will last 1 trillionbilliongillion light years.

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01-13-2010 02:32 AM  7 years agoPost 20
Yug

rrMaster

UK. Herts

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IT will last 1 trillionbilliongillion light years
are you sure about that ?

Vegetable rights and Peace

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