Perhaps the comparison test was about performance.  I'll wait and
   see what
   he says.   AGE-85 is formulated with aircraft in mind, using many of the
   performance enhancing additives that gasoline normally has including
   a wee
   bit of biodiesel, whereas Baylor's E-95 (at this point) is just
   denatured
   ethanol.  Don't race cars run on methanol?

   Doug Fir

Doug,
Yes racecars usually run Methanol, which is even worse energy wise.
Simple fact is gasoline comes in at 115,000 BTU/gal and ethanol at
84,000 BTU/gal, or about 73% the energy available in a gallon of
gasoline. Gas is hard to beat. Some of the effects of burning ethanol
may help bring it closer to gasoline. Tolerance of higher compression
without detonation or per-ignition, and less thermal energy wasted to
cooling do help, but ethanol comes in with a large gap relative to
gasoline. It's a cleaner burning fuel but you can't make the physics
change much. The rotaries tolerance for a wide range of fuels is useful,
but spark ignition bio-diesel might do you better for milage.
Bill Jepson


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