Mustang6G.com got a hold of the window stickers for the EcoBoost, and V6 which list the EPA rated fuel economy. The EcoBoost is good for 22 MPG in the city and 31 on the highway, and the manual V6 gets 17 MPG city and 28 highway. Opting for the automatic in the V6 will get you an extra 2 mpg in the city.