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How to tell if fuel is good or bad

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How to tell if fuel is good or bad

Old 04-13-2014, 06:44 PM
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rcworld2000
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Default How to tell if fuel is good or bad

Ok this winter i bought a few planes off a guy who gave up flying and he had three new never open gallons of fuel
they are probably around 2 to 3 years old but never open. How can i tell if they are still good?
Old 04-13-2014, 07:46 PM
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bikerbc
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They are probably still okay , I guess the best way to tell is to run a tank full or two and see what you think of it . as long as it the right kind of fuel I can't see what you could hurt .
Old 04-13-2014, 07:56 PM
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52larry52
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They should be good. 2-3 yrs old, still sealed, no problem ! Fire up an engine either on a test stand or in a plane using this fuel and see. About 10 yrs ago I was given a case (4 gals) of sealed fuel that was about 5-6 yrs old, and I burned every drop flying. Happy "free" flying !!
Old 04-13-2014, 08:33 PM
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combatpigg
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I'm using nitro that dates back to 2004 and methanol that was bought in 2009....with good results.
Old 04-13-2014, 11:12 PM
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rcworld2000
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Great I guess i will give it a test
Old 04-14-2014, 02:48 AM
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TomCrump
 
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Send all three gallons to me. I'll provide you with a complete evaluation.
Old 04-14-2014, 05:01 AM
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flyinwalenda
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If it's the red fuel in translucent jugs you can tell it's going south by the color. The new fuel will have a light pinkish red tint. Once it starts to turn usually from moisture the color will start to darken and become cloudy. It will still burn but not nearly as well as fresh fuel.
Old 04-22-2014, 08:08 AM
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W7APD Alan
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What they said... the problem with RC glow fuels is that the methanol is hydrophyllic -- it will absorb water right out of the air, diluting the fuel and robbing power. The nitromethane is actually very stable and should be OK for a long time. So, if the fuel has been kept sealed it will probably be fine. I would personally have no reservations about your unopened jugs. As noted, the only way to know for sure is to try it.
Old 04-22-2014, 04:19 PM
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rcworld2000
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I did also get a half gallon that was hooked up to a fuel pump so it has been open?

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