Not to call you out Mike, but the chemistry does not add up for better MPG with more Ethanol.
http://aaae.okstate.edu/proceedings/2005/Articles/556.pdf
If you get a Mileage difference between here and home it is likely due to a difference in terrain.
ok so what you posted has to do with lawn mower engines.. and if you read what you posted it says that to get the better MPG and HP you would need a bigger engine.. also terrain is about the same.. maybe its the high ground.. ya know the fact that Iowa is like 1200ft above sea level... or so shit like that....
You misunderstood the link I posted, it stated that though Ethanol has the ability to produce more horsepower, it is consumed at a higher rate. What applies to small engines also applies to larger engines.
Ben hit the nail on the head with what I was getting at with the terrain difference, and I brought it up because I have noticed a fairly significant mpg difference in my vehicles between Statesboro and Taylorsville. Some how I get better Mileage when I'm not traveling up and down hills all of the time.
You're original post was asking what was wrong with Ethanol and I simply showed you the facts of what I have seen in regards to it.