I just saw this video that suggests putting some pure acetone in gas to greatly increase the mpg...

Reply Tue 4 Nov, 2008 12:18 pm

Has anyone ever heard of this before?
Will this really work?
Will it damage the car?
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Type: Question • Score: 3 • Views: 2,331 • Replies: 7
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Reply Tue 4 Nov, 2008 12:29 pm
A few days ago, I saw the Mythbusters on Discovery Channel put this this story to the test. They called it busted. See "Great Gas Conspiracy" on this Mythbusters' page.
Reply Tue 4 Nov, 2008 12:36 pm
Put 2 drops of acetone in your tank.
In order for this to work, you now have to...
Never drive over 55 on the highway.
Turn off your engine when waiting at lights
Don't accelerate rapidly.
properly inflate your tires

We guarantee your gas mileage will increase by about 10% or more.

You could just skip the acetone and still get the same increase.
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Reply Tue 4 Nov, 2008 12:41 pm
some years ago i read a book from a doctor of the "grenfell mission" - they supplied medical help to the people living in the outports of newfoundland and llabrador . he claimed that they used a one cylinder diesel boat-engine which required the addition of water to the fuel . this apparently reduced fuel consumption and kept the engine clean .
i have read recently that spraying minute amouts of water into an engine during the combustion proces is a promising development - but i wouldn't dare doing it to my honda !
Reply Tue 4 Nov, 2008 12:44 pm
I tinkered around with water vapor injection 20 some years ago.

intriguing, but more liable to damage than it is to work consistently...

(and I'm with the mythbusters on acetone)
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Reply Tue 4 Nov, 2008 01:31 pm
I've heard of this one, but I recall it being used to control detonation in high compression engines. It worked, but was a fairly expensive installation for the benefits.
Reply Wed 5 Nov, 2008 08:24 am
youtube something about rotary motrs and the mazda r7

they have tanks of water in the backa dn they pump it into their engine blocks

i guess it does something
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Reply Wed 5 Nov, 2008 11:52 am
Last summer, I overheard someone who had experience
with the engines of cars, of several decades duration.

I heard him mention that he had added a structure
to the engine of his pick up truck
that ran an electric charge thru some water, separating
hydrogen from oxygen, and that the hydrogen yielded 40% better gas milage
when combined with his normal use of gasoline consumption.

I have no expertise in such matters; I cannot judge this.

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