Marshall Brain's Blog

If this actually worked, someone would be selling little 2-ounce bottles of acetone with a brandname like "SpeedFire mileage booster!" for $5 each.
 

nice, comfy place you got here :)..
 

What about Water injection?
 

One way to find out...
 

Actually to all:

FYI: The acetone is reacting with the catalyst used in the oxygen senor making the mixture "appear" too rich. As a result - the mixture is leaned out and the mileage goes up.

The reason it does not work the same on all cars is that there are three different metals used as catalysts in O2 sensors: platinum palladium rhodium or in combination. Acetone in combination with NOx in the exhaust will react differently with each metal to either speed up or slow down the catalytic reaction of the oxygen senor. FYI, I am not talking about the catalytic converter - just to stop about 100 posts.

Question: am I the only one on the planet who knows this?

The reason I know this is that I used to work for Exxon; and fyi, the reason they don't put acetone in gas is that it is hard to get it to stay there and second over time it reacts with different kinds of additives in fuel. Which is also a reason why it does not work on some car - it's the gas not the car.
 

The gentleman started using acetone fifty years ago,long before all the o2 sensors,so there are other reasond he has been getting positive results for so long.
 

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