I can see everything normal but the acetone, %40 increase by adding acetone seems odd. However I can say that changing spark plugs, filters and other routine maintenance has drastically improved my gas mileage.

I call bullshit on a number of different areas. The big one for me, is that if you are doing an experiment to see if your MPG will change by adding acetone, then keep everything else constant and just change the fuel.

Removing the spare tire and jack? In what way is that a normal action for your average car owner? Sure, tire pressure and excess crap in the truck, but why remove standard equipment? Just doing this stuff, he started changing his MPG and this had nothing to do with acetone, so this baseline should not be part of the results.

Holy hell, he changed out most of the ignition system, wow, look how much affect the acetone is having! What do you mean it hasn't been added yet? Up 8 MPG and nothing has changed with the fuel yet.

The final result looks like it was based off of a single set of driving, which is in no way conclusive. There are so many flaws in this "experiment" that it just leaves too much room for doubt.

The whole thing should be done again, with only the fuel changing, and over longer driving distances using a brand new vehicle, not some clunker from the past. Who knows, maybe his old car was supposed to be getting 35 MPG when it first rolled off the lot and everything that he did was just fixing old problems?

Just rediculous.

This was on Mythbusters, admittedly not the most scientific of guys.
Episode 53
Great Gas Conspiracy

Myth: Automakers and fuel suppliers are in collusion to keep us dependent on expensive gasoline and inefficient cars. There are many devices that one can use to cut your fuel consumption.

They got a carbureted car and a fuel-injected car to test several types of devices. The cars were placed on a dynamometer, which allows the car to drive without moving anywhere.

Test devices and additives:

* Fuel line magnets: working on the "principles of hydrodynamics," they are supposed to align the molecules for more efficient consumption.
* Acetone additive: supposed to make gasoline burn more efficiently
* 300mpg 'super' carburetor
* Hydrogen fuel cell generator: flammable hydrogen gas produced by electrolysis. Adam labeled it "Gasbuster: Stickin' it to the Man"

They tested each car on the dynamometer at 35mph and 55mph with each 'device.'

Carburetor car:

* Baseline: 17mpg at 35mph and 25mpg at 55mph
* Magnets: exactly the same as baseline busted
* Acetone: 16.7mpg at 35mph and 24mpg at 55mph busted
* Super carb: much worse than baseline, 12mpg at 35mph and 17.7mpg at 55mph busted

Fuel-injected car

* Baseline: 19mpg at 35mph and 27mpg at 55mph
* Magnets: 18mpg at 35mph and 26mpg at 55mph busted
* Acetone: 18mpg at 35mph and 26mpg at 55mph busted

To find out, we went to the Mechanical Engineering Department at Kettering University, in Flint. Dr. Greg Davis thought it would be good experience for his students to verify the claims about acetone in the department's test engine, a Buick 3.8 liter V-6 that is equipped with all kinds of probes and sensors.

For several weeks the students experimented with various strengths of acetone in gasoline. The findings were disappointing.

"Our current preliminary data suggests essentially no improvement running acetone in the fuel," Davis said.

Professor Davis wasn't surprised. "If you notice, it's a very small amount and when you add a very small amount of anything to your fuel, you wouldn't expect a large impact. So it's not really a surprise today."

We wanted to see if it made a difference in a real world situation, so a student who knows what kind of mileage to expect from his Ford pickup and Volkswagen tried acetone in the gas. "The results, when you add three ounces per ten gallons, there were no effects," said Josh Goudzwaard.

Aside from having no effect on mileage, acetone could actually do harm by damaging hoses and fittings. Carmakers don't like acetone either.

"If they know you did it, they could void the warranty," Davis warned.

http://abclocal.go.com/wjrt/story?section=automotive&id=3951510

17 hours and it's *dead fix and I'll watch.

Only published videos may be flagged dead (ignoring request by gold star member InvaderSil)

Alright, this was thoroughly busted. Thanks guys. Pointless to keep this stuff on the Sift. *discard

Self-discarding this video (discard called by original submitter karaidl)