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Old Glow fuel

Old 04-19-2009, 08:28 PM
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crtmmac
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Default Old Glow fuel

Hi. I just took a flight using 25% glow fuel that was purchased in 1993. The seal was unbroken and the engine (O.S. 70 FL) seemed to run fine. Is there any harm/risk in using such old fuel? Thanks for your feedback
Old 04-19-2009, 08:49 PM
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Default RE: Old Glow fuel

Nope.... No problem at all. If it's been sealed and runs fine, it's OK to use.

Bill
Old 04-19-2009, 08:54 PM
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Default RE: Old Glow fuel

Thanks. Do you think the it will stilll contain 25% Nitro or will that diminish over time?

cheers
Old 04-19-2009, 09:10 PM
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Default RE: Old Glow fuel

Most modern sport aircraft engines aren't designed to run on 25% nitro so even if it did loose some, it wouldn't hurt. All of that is academic. Model fuel will absorb water if not sealed tightly and damage the fuel... but since your fuel has been tightly capped and runs fine, you can rule that out.

Bill
Old 04-20-2009, 06:06 AM
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Default RE: Old Glow fuel

Thanks again.

cheers
Old 04-20-2009, 07:03 AM
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Default RE: Old Glow fuel

If the seal was broken it would likely contain a higher percentage of nitro not less. Methanol evaporates a lot faster than nitro. If the can was full then it should have the same percentage. My experiance with cracked jugs is that it doesn't pick up moisture, but that the oil percentage is much higher.
Old 04-20-2009, 07:31 AM
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Default RE: Old Glow fuel

Thanks.

I have about 4 or 5 gallons of this. So at $25 per gal I'm really happy if it works. Which it appears to do.

Thanks for your feedback
Old 04-24-2009, 09:32 AM
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Default RE: Old Glow fuel

I had a gallon of fuel that sat after being opened but tightly recapped for about 10 years with no problem at all.
Old 04-24-2009, 09:53 AM
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Default RE: Old Glow fuel

Good to know. Thanks, much

/colin

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