re: 12 mpg... He does state the truck will be used for short, around town trips. And he's estimating down due to the lower energy content of the e85.
If my mom can turn a 20 mpg (US) city rated Camry four cylinder into a
14.7 mpg fuel sucking pig in short haul sub/urban use, I'm sure Moore can do the same or worse on an e85 blend in his pickup rated for 16 mpg city.