M wrote:
Another factor, which only has to do
with economy, is that we pay for fuel in volume (gallons), not
pounds. If Jet A and 100LL are both $4 per gallon, you get more
pounds of jet A with that $4. These two factor combined, diesel
powered Cessna would burn about 30% less $ worth of fuel per hour at
the same power output, assuming JetA and 100LL cost the same per
gallon. That's quite significant. These days it seems that Jet A is
consistently less per gallon than 100LL.


Its also true that the federal taxes on JETA is significantly higher
than AVGAS, thus the price you actually pay is not a lot less than
AVGAS.