No sorry, just talking about the V8's there.Your comment I replied to was confusing because you mention them switching to the I6 Hurricanes then go on to talk about complexity and higher replacement part prices lead to to believe you were referring to the Hurricane.
Do you think the Hurricanes will get better mileage when towing/hauling? I doubt it as the turbos spooling up will increase consumption. A friend had an F-150 V8, then bought a turbo v6 F-150 due to all the advertising of better mileage, and quickly traded it for a V8 as he tows mon-fri for his business. The V8 is better every day for him.