Welcome to the Ford Mustang forum built for owners of the Mustang GT350, BOSS 302, GT500, and all other S550, S197, SN95, Fox Body and older Mustangs set up for open track days, road racing, and/or autocross. Join our forum, interact with others, share your build, and help us strengthen this community!
I do my best. I'm sure it was lower on track but I forgot to reset it. My car is mostly just used for mountain runs, but I am pretty much always in the 10-14 mpg range on the street with 14 being when I get stuck behind a Prius in the mountains. 8.9 was my street record and that did not involve any burnouts.
1000 miles with 14 mpg with grey key, and since then another 1000 miles with red key = 12 mpg.
no highways, just little roads with fun factor and lots of heel toe double clutch downshifts @40 miles an hour (no trafic lights and stop and go but many many turns) ( so yeah, no racing at all but lots of exhaust pops ^^)
PS: before I joined the forum I was flabergasted at the difference between actual mpg and STICKER MPG, then I realized thats normal with this car, but thank god I didnt buy that car for its STICKER CLAIMED MPG ( what a joke). I think its possible to get sticker mpg, but basically you have to say NO and then NO and NO again to ANY KIND OF FUN SOUNDS OR FEELS with our car.
True of most cars. I get 12 mpg in my truck driving normal, I get 16 if I baby it to the point of frustrating myself. I haven't even tried babying the Boss. My old turbo car got 19-20 mph like clockwork highway or city driving fast or slow. It was an anomaly, though I think it got less mpg at the track than the Boss.