It's an interesting test, but we do need to be consistent in whether we're measuring energy density by weight or by volume. By weight, Ethanol energy comes out 134% of Methanol -- by volume only 118% -- that is significant.
This has been an educational thread for me. If "high ethanol content blends like Green denatured produce a little more soot", how does Sunnyside with an even higher percentage? Since "Complete combustion of ethanol forms carbon dioxide and water vapor", I'm thinking Sunnyside may burn cleaner (less soot) since it doesn't have as much other stuff in the mix. Is there an optimum blend to eliminate soot?
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Better is the Enemy of Good Enough.
Okay, what’s your point??