Bryan24 says that you can get 2 crops per year. Farmers here in CT usually get three cuttings of hay, and I wouldn't know how this translates, but I have little reason to doubt him.
My worries about this are many. I was just reading a boating mag yesteerday and they expressed concern about E10 fuel (10%Ethanol) which many marinas are converting to. Apparently it raises heck with marine engines, and causes more corrosion if internal parts.
People are talking about how great E85 is. I shudder to think!
Now I have no idea how bad soy gas is compared to E10 or regular unleaded, but I've seen 'miracle fuels' come and go, and seen the damage they do to engines.
And I think the total cost of this is going to evolve into a lot more than 50 cents a gallon.
Watch the video, this fuel lubs the cyclinder and burn cool
I mistyped. I meant to type "if you can get more than 1 crop per year".
I'm sure some climates can. I don't think North Alabama can get 2 soybean crops per year. I know they can't with cotton.
Ethanol (soy gas) is nothing like gasoline, whereas biodiesel is nerly the same as regular diesel, and is better for engines in some ways, but provides very slightly less energy per gallon and can't be used in as low a temp range.