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I've been meaning to but haven't got around to it yet. The theory is that it decreases the surface tension of the fuel, resulting in much smaller droplets when they are injected into the engine, so the fuel will have a larger surface area exposed to oxygen so it burns better.
OK, imagine I'm a diesel fuel supplier. I can put a coupple of percent of acetone in the fuel easilly and cheaply enough. Then I can sell my "premium" diesel- "with X% more miles to the gallon" at a premium price.So can all the other diesel dealers.Why aren't they doing it?
Is there any real evidence of any significat effect?
There are plenty of aditives in diesel. I doubt any of them make it cheaper so the idea that price would scare people off a premium product is weird.
Its possible that the added acetone could damage some engines in the same way that some cars can't take ethanol mixed fuel, because it dissolves the fuel valves or something.http://www.pureenergysystems.com/news/2005/03/17/6900069_Acetone/ [nofollow]