http://www.metacafe.com/watch/524517...as_mileage_2x/

Acetone? Will it hurt your engine in any way?

 

Couldn't be......

 

Wow a 10 MPG boost just by adding acetone!

Also, doesn't turning the engine on and off that often harm the engine?

Can any car guru confirm if this might be healthy for the car?

I'm getting like 18 MPG on my IS 250, and that's ridiculous!

Well, I guess I should stop with the WOT's and take the cat out of the trunk .

 

I heard turning on and off too much means that you are you going to change your spark plugs more often.

 

Acetone in high concentration will kill your fuel injector seals. I know because I tested it myself. In 30 days of 100% acetone, the seals were swelled to 40% larger than normal.

I tried this in my Scion. The results were entirely inconsistent. I experimented with the amount, and it seemed to work at very low volumes, but then my mileage went right back to normal, and I couldn't get the acetone to do anything better no matter what the concentration.

I did this for about 15,000 miles (I drive a LOT), and I had hoped it would either be conclusively good or conclusively useless. It was neither. It seemed to help sometimes, and others it made no difference. That's my experience.

 

Great information, thanks a lot Lobux

 

If this idiocy were true don't you think car manufacturers might have an 'acetone tank' you could fill to get better mpg?

 

I think its got a cleaning quality to it and initially one might see an increase, but after that the probably not much of anything. I did everything in that video up until the acetone.

 

So would using 2oz, like he did harm anything? Perhaps every fill up?

 

This has been floating about for decades. While the main component is methanol this is one of those legends that keeps persisting. With all the talk about greenhouse and carbon dioxide, adding more airborne issues by doing such is irresponsible.

If raising the methanol level would produce such results, the chemists at the major refineries and auto manufacturers would have implemented it. These backyard attempts have no conclusive data to rely on but word of mouth. For the most part, I have yet to hear of this being a night day difference. So by the time you are done, it's about the same as if you bought premium gas from your favorite gas station but a bit more.

Plenty of other ways to improve fuel economy.

 

I don't know about the acetone idea personally, but it does sound like one of those too good to be true situations.
As for turning your engine on and off repeatedly while driving, it will wear out bearings much more quickly than normal. Most engines use hydrodynamic bearings in many places. These reduce friction by creating a film of oil between the shaft and the sleeve when the shaft rotates at high speeds relative to the sleeve. When the engine is stopped however, this film of oil separates, allowing contact between the pieces of metal and creates more wear on the engine.

Now, I don't know what they do to make up for this in hybrids which turn off every time you stop, so if anyone has some insight on that subject, I'd love to know.

 

No thanks!

 

I was also under the impression that you couldn't run degreasers like this in aluminum block motors? I know cast iron is fine, but doesn't it damage the aluminum? Correct me if I am wrong.

 

Adding acetone or xylene into your tank does nothing more than increase the octane ratinf of your gas. I did a study back in high school on it. I have all of the info somewhere but there is an equation that for every 3 gallons of 93 octane and 1 gallon of xylene will yeild you 4 gallons of 100 octane. And yes I have proof of this.

 

Myth busters did this.
In the episode I think they determined it didnt really work.