I am looking for feedback on this:

I was listening to a radio show called "coast to coast am" and one of the guests on that night mentioned adding acetone to their fuel tank to improve mpg and performance. This is what he stated:
--------------------------------------------------------------------------------
2.5oz of acetone per 10gallons premiemplus (91+octane only)

Benefits:
25-35% better mpg
Few more horsepower
And most importantly, Cleans the engine, engine block and catalytic converter to a perfect shining white(no gunk buildup what so ever to components)

1.5oz per 10gallons diesel as well.

-------------------------------------------------------------------------------
The actual research had been done by some chemical engineers in Seattle area. And there had been some extensive testing before any claims were made.

Here he is quoted:
"He shared his first-hand experiences with the inexpensive product acetone. When added to premium fuel in the quantity of 2.5 ounces per 10 gallons of gas, it improves combustion efficiency and gas mileage by 25% to 35%, he reported. But the addition of acetone doesn't work with gas that contains ethanol, he noted."


"It actually chemically alters the gasoline in your tank, and it permits more complete combustion of the gasoline, and it improves combustion efficiency
It winds up cleaning the engine, a smoother engine

A car that hadn't had a tune up in 2 years was expected for a smog check; he filled it up with gas and added in the acetone; it passed with flying colors.
He has Nissan maxima with 210,000 miles. He cracked the exhaust manifold stud, had an exhaust leak, and had to take it off. The piece where the exhaust gases first come out of the engine, and start to enter the system, that goes back to the muffler on the car.

Upon taking off the exhaust manifold, normally you would expect to see sort of a charcoal, or a medium grey discoloration from the carbon and so forth that's left over from the combustion process. And he looked down into this exhaust manifold, and it was PURE WHITE inside. It was as if someone had gone with a sandblasted all of the carbon and everything off the inside of the exhaust manifold.

Over the period of a couple hundred thousand miles, you get a certain amount of oil leakage around the valve stem, and it comes down, and it starts to coke, or heat up or cook on to the back face of the valve, and it creates these deposits, which over time, will begin to retard the passage of the exhaust gasses, and undermine the performance of the engine.

Normally with over 210,000 miles on the car you would expect to see some serious deposits there. But when he looked up inside the exhaust ports, the valve stems were perfect clean, shiny. "


*****Don't use on older cars with carburetors with a pure Styrofoam float. Brass floats and penolic plastic with is impervious to acetone even in its purest form.