Mespilus,I think you will find that starter fluid sprays such as 'easy start' are ether rather than acetone based
That's what I thought actually - though in practice many aerosols will have the same effect if sprayed into the inlet manifold. Easy start is not something you want to use if you can avoid it - it has been known to bend con rods with the force of the detonation - and the clattering the engine makes running on it suggests that it's not enjoying the experience! Apparently, regular use can lead to engines becoming "addicted" to the stuff and refusing to start without it -though whether there's any truth in that I couldn't say.
The majority of diesel injector treatments are based on petroleum distillates and napthalene as far as I know - haven't seen acetone mentioned in any ingredients lists.
As I said before - it's an interesting subject and there has been a lot of debate over it. Mythbusters tested it and found that mpg decreased, which lead to more speculation that "Big Oil" was behind a cover up over it all (ie acetone addition would lead to less revenue at the pump) There is a wiki page somewhere where the guy in the street can add his experiences, and it's fair to say that the majority of contributors HAVE had an increase in mpg. The acetone users on the Transit forum all seem fairly convinced too. Having said that, I repeat that it seems that it doesn't work for everyone, and that I fully accept that many of the "tests" may not be scientific.
Andy
