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Quote:
Originally Posted by Tom Wesenberg
I have heard that planes can NOT use corn crap gas because it is known how it can mess things up.
Be a shame to see a plane fall out of the sky and hit an ethanol plant. LOL
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There are various reasons why airplanes cannot use ethanol adulterated fuel.
The ethanol dissolves the resin in some composite fuel tanks. Fuel systems are not sealed like modern automotive fuel systems so the ethanol absorbs moisture from the air. Once the ethanol is saturated with water corrosion starts. That’s the same reason boaters don’t use it. Experimental (amateur built) Airplanes with aluminum fuel tanks and Rotax engines use it regularly. Certified aircraft are not allowed to use it by Federal Aviation Rules. Many lower horsepower certified airplanes can by regulation use non-adulterated auto fuel. Adulterated fuel is more prone to form carburetor ice on cool days with high humidity.
I hate working on airplanes that use any form of auto fuel, it stinks and you can’t wash off the stink. Avgas does not stink and the sweet smell disappears in a few minutes.