Extra Fuel is a highly refined solvent with the light volatile compounds eliminated.  Octane is a C8 H18 hydrocarbon and used as the detonation standard in testing fuel blends, hence "octane rating," so there is likely a lot of octane in this product. It's definitely an interesting idea, but at $35/half gallon you are not going to carry much!  http://www.gizmag.com/extra-fuel/24554/ 

Stuart

-----Original Message-----
 Rocket J Squirrel wrote:

"If you must keep some fuel available on a regular basis consider one of the safer gasoline alternatives such as this.

http://extrafuel.net/

"I don’t completely understand how it works but it does."

That stuff just seems weird.

--
Jack "Rocket j Squirrel" Elliott
1984 Westfalia, auto trans,
Bend, Ore.