[aimhigh]

Here's site talking about half-gas/water mixture that works.

http://www.betterworld.com/BWZ/9608/product.htm

[oldcomputerguy]

I don't see this as being too outlandish. Toluene is currently used by fuel producers to raise octane. It is also used by classic car enthusiasts to run older high compression engines. Just search Goggle for octane booster, it was a surprise to me when I found it.

[billybudd]

From the original article at LubeDev:

"This article about acetone (CH3COCH3) probably draws conclusions that Big Oil and the American Car Manufacturers and others do NOT want you to know. They suffer from unlimited corporate GREED. They want bad mileage. The worse, the better as far as they are concerned."

The article you cited was written by Louis LaPointe, who also made these claims at LubeDev. LubeDev is a commercial enterprise selling various lubrication testers. This is a bunch of hogwash and an attempt at commercial endorsement. Please don't post this junk.

[coloradan]

Getting 35% better mileage from a fuel that costs $6/gallon (200% more) isn't exactly a win.

[biblewonk]

carwonk ping.

[builder]

This just in !

Driving downhill increases gas mileage by 50% to 75%

[add925]

Shhhhhhhh.....Price of Acetone may increase to $55 a gallon.

[Publius6961]

Figure 1: Percentage MILEAGE GAIN when a tiny amount of acetone is added to fuel. The curves A B C show the effect on three different cars using different gasolines. Some engines respond better than others to acetone. The D curve is for diesel fuel. Too much acetone will decrease mileage slightly due to adding too much octane to the fuel. Too much also upsets the mixture ratio because acetone (like alcohol) is a light molecule.

Missing data from the graph at the start of the article.

[Solamente]

Didn't Kitty Dukakis used to drink Acetone?

[Ghengis]

Acetone is used in acetylene tanks to facilitate the burning of the acetylene gas. What you commonly see in the gas cutting torch, brazing welding outfits in conjunction with an oxygen tank.

I have driven LP (Propane) and Natural Gas vehicles. You lose a tad bit of performance, but the engines run longer between tune-ups and oil changes and last much longer. Plus, you get a little better fuel mileage as I recall.

[traumer]

Aaaaaaah, acetone....

[jimt]

"That excess fuel was formerly wasted past the rings or sent out the tailpipe but when mixed with acetone it gets burned. "

Were this true it would show up in emissions tests as unburned hydrocarbons.

It doesn't.

[Atlas Sneezed]

When I add 15% more Shell regular to each gallon of Chevron regular, I get 15% more miles.

[epaul]

Ok A mod over at timebomb tried this on a ranger pickup an increased mpg 13 percent on his first trip, anyone else try it yet?

[festus]

I prefer booze in my gas to acetone. That way I can still drink it if I need to.

[rface]

I tried it over the weekend.
I drive from Ashland, MO to Stockton, MO every weekend. This trip is 135 miles one way and is mostly highway miles, but I do some back-roads driving too after I get to my destination. Typically I will get 16.5 to 16.7 mpg on a tank of gas for this trip.

1996 Ford Explorer 5.0L V8 with 170,000 miles on it
I poured 6 oz. (180 ml) acetone into the filled 21 gallon gas tank
I made sure all the tires had 32 - 35 psi
I used Casey's General Store gasoline w/ 10% ethanol (I probably should have used the gas w/out eth. - but I'll try that next time).

Results: 369 miles using 18.46 gal = 19.99 mpg

Now I am trying this on my 1993 Dodge Spirit for this week