I'm kinda liking the concept, tho I agree that it won't work in a Super Duty mainly for the fact that we'd have to pull over so often... keeping up with 2 fuel systems also requires an educated driver (or another "idiot light"). I don't see myself trading my good ol' 7.3L for one of these. If they put it in the F150's I'll tell my friends about it (or maybe I'll be buying a Mustang someday with that engine?)... given it's been put thru it's paces for a few years and has proven itself.