heres some scientificexplanation
http://pesn.com/2005/03/17/6900069_Acetone/

on the Fordf150 site theres a couple people thast been trying this for a while.
heres some one of the links. these are very old topics

http://www.fordf150.net/forums/viewt...hlight=acetone
lawn mower test at bottom of page on this
http://www.fordf150.net/forums/viewt...hlight=acetone

and also, there might be long term effects, such as disentigrating fuel lines etc, but i cant find the results for those tests somepeople did.

 

RESULTS>>

Ok so I filled the Stang back up today for the official results. I had used the 3oz per 10gal mixture and I put the acetone in before filling up for a good mix. I even used the same pump I filled up with the first time for the refill. Iended up getting21.55 mpg which is the EXACT same number I got the last time I calculated my milage without the acetone.

 

Hello, I just bought sunnyside acetone today at aco for 5.99. Just want to make sure it's the right stuff and won't harm my engine. There's tons of warnings all over it basicly the only wrighting on it is a warning lol... says on front 100%water miscible I'm not sure what that means, any ideas?

 

Almost forgot found a pic of what I bought http://www.amazon.com/gp/product/B00...F8&seller=
Also are all the warnings on the box some thing I should take seriously? It says that even the vapors can cause flash fires, not to breath in and not to get on skin goes on and on, I thought it was compareable to gasoline and gasoline doesn't have all these warnings and stuff. I guess it would be a good idea to buy a new messuring unit instead of using my moms kitchen measuring cup....

Another thing does it really matter if you put it in first or after fill up? I was thinking first but I thought about it and if I put it in after it would basicly be the same I would guess the acetone is heavier too.