Is this because it burns easier than fuel? Not harder like toluene?
Does it have a benzene ring structure?
The Klotz additives contain Nitropropane; it increases the oxygen content in the fuel. You can get the stuff at most Off-Road Motorcycle/Go-Kart shops over the counter.
Read the link to the HotRod Magazine article in my previous post; it has all the technical information on Nitropropane, how it works, and its effects. When we meet this summer, I will show the effect on E.T. and MPH when added to the fuel.