Graham Jagger wrote:
OMG !!!! A V6, 305hp, that gets 30mpg highway with a 6-speed.
That is unheard of. You Ford guys rock.
Oh wait, my V8, 405hp, gets 30mpg highway with a 6-speed.
Never mind...

Your 0.56:1 6th gear will do wonders for mileage, and I'll bet it's a big help on track.. when you want to go 250 mph

. Big motors do all right on gas if you keep the revs down. With it's original 2.73 final drive, my 1990 5.0L Mustang would get 29mpg if you kept it below 1600 rpm (65 mph).
I wish my new Mustang had a 6-speed with the big overdrive, since 2100 rpm is way too high for 75 mph cruising. Best highway mileage I've seen from it was 27mpg (Durham-DC-Durham when gas was over $4/gal last year).