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On the Fuel issue.
Chemically, Acetone is just to volatile and unstable. I know ethanol is used because of it being one degree cousins to octane. Plus it makes them detonate at the same temp and pressure. Acetone on the other hand just evaporates/reacts even in room temp. I know fuel does too but its much more stable and takes more than acetone. IMHO, if we run premium.... why contaminate? I know the "fillers" they use to expand fuels are actually water inits many forms. believe it or not, they are up to 5% in the form of Benzyne and Propane (or propanol) chains, which are the other cousins of octane too. The product of combustion is always water and co2. I believe NOX emissions are really from poor air/fuel to ratio mix. Fuel is secondary in my opinion.
I have found BP in my area to give me the best mpg, i used shell and citgo and i was disappointed. BP gave me 19mpg highway while shell and citgo gave 17 and 16.5 respectively.
Thanks, just my thoughts
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