Ned,
Supposedly this will work for bunker burners too, but because of their extremely high compression it is necessary to start out very small, on the order of 1/2oz. per 10 gals diesel fuel and work your way up from there until no additional benefit is seen. Because acetone has a slower flame front than gasoline, there is little if any chance that it will cause detonation or any other serious side effects. You could theoretically run either a diesel or gas engine on pure acetone, but it would be nigh impossible to start, would require a drastic change to the fuel/air ratio and ignition timing, be godawfully expensive, and produce much less power. I'd be happy to see a modest (5-10%) gain in mileage. The biggest challange will be to find fuel that is consistent wherever you travel so you don't have to keep adjusting the amount used. Another good point brought out was that few, if any, filling stations wait long enough for the water to separate out before bringing a new fuel supply on line. Maybe Pilot and Love's have a system worked out, due to the huge volume they sell. It would be interesting to hear from folks with 'war stories' about contaminated fuel. Anyone have problems with the big guys or is it just the small ones??