Replying to a message of Geo. to Bob.Ackley:

 G> From: "Geo." 

 G> "Bob.Ackley ."
 wrote in message
 G> news:908b19.7d3105{at}FidoNet.no-ip.info...

 >> No I don't track mileage for comparison, one of my cars averages about
 >> 33 mpg on 10% ethanol and has managed as high as 40 mpg (don't know
 >> why the disparity),

 G> It's because if you go from the 10% mix to just gas with no ethanol you
 G> get 20% better milage which 33 x 1.2 = 39.6mpg

Except that I didn't change blends or brands.  The vast majority of my driving 
at the time was within 50 miles of Omaha.

--- FleetStreet 1.19+