Finn, As to fuels that absorb water vs fuels that separate water .....
I asked myself the same question--- many times...... and decided that in the case of automobiles, without a sump drain, then water absorption might be desireable - and that kept in susspension, might not cause problems like even carburetter iceing, or fuel line /fuel pump freezing problems..... resulting in an anti-freeze fuel. But, Having the ability to drain the water, from an airplane sump, keeping water out of the fuel lines and fuel pump, etc.,; I decided I would rather have the ability to eliminate the water content.... Hopefully this helps prevent carb icing, fuel pump failure from freezing, and carb damage from freezing or corrosion due to water containing gasoline.. Maybe we can get the Gasoline companies to produce a anti freeze gasoline that would contain the water, but not seperate, or freeze.....then on the combustion of the fuel, separate the water into hydrogen and oxygen making it an automatic water injection fuel... I certainly may not be correct in my logic tree; but this also follows the proceedure for determining the alcohol content of gasolines. The alcohol portion doing the water absorption.... I do like the azbility of draining water from my tanks.... wish I could do so in my auto... Fly Safe - Have Fun Regards, Harry
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