2015 Ford Mustang EcoBoost MPG Leaked

2015 Ford Mustang Ecoboost

The 2015 Ford Mustang EcoBoost is one of the most talked-about and anticipated cars of this year, and Ford has slowly been trickling out information about the four-cylinder turbo ‘Stang. The latest 2015 Mustang leak has revealed fuel economy figures for the 310 horsepower 2.3 liter EcoBoost engine with a manual transmission…and they’re not all that impressive to be frank, though it’s in line with what we’ve heard before.

A poster over at Mustang6g posted the window sticker of a 2015 Mustang EcoBoost with the shift-for-yourself option which puts the EPA-rated gas mileage at 22 city and 31 highway for a combined 26 MPG. Those numbers are identical to those of the 2014 Mustang V6 with the six-speed manual, which was rated at 19 MPG city and 31 MPG highway (22 combined). In other words, Ford seems to have moved sideways with the 2015 Mustang’s MPG, not forward. That’s doubly true when considering that the detuned V6 engine now not only makes less power in the 2015 Mustang, but also gets worse gas mileage at just 17 MPG city and 28 MPG on the highway with a manual transmission, and 19/28/22 combined with the automatic.

While it’s certainly possible that the EcoBoost Mustang with an automatic transmission could deliver the 34 MPG Ford was reportedly aiming for, it seems like a long shot in ever sense of the world. Perhaps the Blue Oval’s brush with consumer dissatisfaction over the inflated MPG numbers of the Fusion and C-Max hybrids convinced the suits to dial back the numbers.

Probably a wise move, but disappointing all the same, especially given that Ford decided to dial back the performance of the 3.7 liter V6 to make the EcoBoost engine more approachable. With a $24,425 starting MSRP and the sorta-optional-but-not-really $1,995 Performance Pack, you’re looking at close to $27,000 out the door and for what? 10 extra horsepower and slightly better gas mileage? It’s hard to make that argument, and I feel like Ford may have set the four-cylinder EcoBoost up to fail.

Then again, maybe that’s not fair. The Mustang has come a long, long way in just a few years, and it wasn’t that long ago that Ford needed a 4.6 liter V8 to make 300 horsepower. Now an engine literally half that size makes as much horsepower and 25% better fuel economy to boost. I guess I was just expecting something…more?

What are your thoughts on the 2015 Ford Mustang MPG numbers? Good, bad, or just ugly?

Christopher DeMorro

A writer and gearhead who loves all things automotive, from hybrids to HEMIs, can be found wrenching or writing- or else, he's running, because he's one of those crazy people who gets enjoyment from running insane distances.