This happens to be true, due to the chemical properties of ketones to suspend water molecules. I don't doubt that, when mixed right is will help the fuel burn more efficient. If your not familiar with this new idea, do a search on "adding acetone to gasoline". That will get you the pros and cons.
BUT....... if anyone is thinking or reading about this wonderful gas mileage improvement tip, heed this warning !!!!!!!
I happen to work with different types of rubber compounds on a daily basis, so I can pretty much tell you that ACETONE will attack most all nitrile or europrene synthetic rubber. Such rubber is used in fuel line, orings, or any application where fuel resistance is needed. In the quantities they tell you to mix the acetone to gas, it will more than likely be a slow degradation.
When it is attacked, slowly or otherwise, it starts to break down the chemical properties of the nitrile, turning it into sludge.
I've seen fuel lines that have been attacked by various chemicals, as of lately, whatever they were replacing sulfur in diesel fuel with was attacking all of our expensive fuel resistant hose. It just turned it into a black slime.
Also consider, as these chemicals are being broken down, they are being seperated and released into your fuel stream, so if it does not kill your lines and seals, it will surely clog your filter.
Just my 2 cents
If your wondering what happens to rubber from chemical reaction, take a pc of silicone and drop it in some hydrogen peroxide. It will blow up 5-10 times it's normal size