Old Glow fuel
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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
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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
Bill
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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.