My GT has only 1,020 miles on it, mostly city but with some highway driving, and I'm averaging 18.6 mpg. I must say, however, that my car is so much fun I wouldn't care if I was averaging 14 mpg. Fabulous car!
I routinely get 21-23 in my 2010 in mixed all-around driving. This includes some highway, some country roads and around town, but very little stop and go. This is per the dash computer and hand verified; I've done the math many times and it always comes out very close.
Yeah there are other threads on this that could be found with a search, but we do need some new threads to keep things moving around here.
| 2010 GT coupe | Daily Driver with some Steeda and GT500 take-off stuff for the occasional track day
For my short commute back and forth to work (<25 miles RT), which is about 50/50, I get 18+ mpg. On a longer 200 mile RT that is about 75% highway @75 mph/25% back roads, I have gotten 23+ mpg. Haven't had a chance to do a 100% highway run, but expect that it would at least meet the EPA estimate.
As was said, the mpg increase compared to my F150 is just icing on the cake. It's all about the fun factor of driving a Mustang.
Mine has approximately 4500 miles on it and is averaging exactly 21 mpg from when I took delivery. My driving consists of about 70% city 30% highway. I don't beat it all the time, but do let is loose quite often. I do think if I drove it like a normal car then it would be getting 23 mpg, but then why would I want a Mustang"
2014 GT Premium / Deep Impact Blue / 6 speed / 401A-Charcoal and Cashmere / Comfort Pkg / Sec and Rear Sensing Pkg / 19" Mach Alum Wheels / 3.73