2015 Mustang MPG Ratings Fully Revealed


The 2015 Ford Mustang’s MPG ratings have finally been fully revealed after a leak showed some, but not all, of the engine/transmission combination ratings. The EPA has revealed the rest of the ratings of the whole 2015 Mustang engine lineup, and the original pony car stays on top of the MPG pack.

The base 3.7 liter V6 engine, which has been detuned to 300 horsepower compared to the 305 of the 2014 model, also saw its fuel economy numbers a couple of MPG. The 2015 Mustang V6 is now rated at 17 city/28 highway/21 combined with a manual transmission, and 19 city/28 highway/22 combined when equipped with the six-speed automatic. That’s down from 31 MPG highway on a similarly-equipped (yet more powerful!) 2014 Mustang V6, and a loss of 1 to 2 MPG across the rest of the ratings. Umm, ew?

The reason? To give buyers cause to pay extra for the 310 horsepower 2.3 liter EcoBoost engine, which was rated at 22 city/31 highway/25 combined with a stick shift, and 21 city/32 highway/26 combined with a slushbox. While the EcoBoost engine offers up to 4 extra MPG compared with the V6, more horsepower, and a better torque curve, two of those three are only because Ford made the V6 engine less competitive. I wouldn’t be surprised if in a few years, the V6 option disappears altogether with Ford citing low sales.

That leaves the big daddy 435 horsepower 5.0 V8, which guzzles gas at a rate of 15 MPG city/25 MPG highway/19 combined with the manual. The automatic transmission adds an extra MPG to the city rating, but that’s it, though Ford has never tried to claim the Coyote engine is efficient. According to the EPA, the cost in fueling the most and least-efficient Mustangs is about $750 per year.

I’m disappointed, which is tough to say because I was one of the biggest 2015 Mustang fanboys. From everything I’ve heard, the 2.3 liter EcoBoost is a smooth torque beast and a worthy Mustang engine, but it’s only marginally more efficient and powerful. There are plenty of other improvements to the 2015 Mustang, like active grille shutters and an independent rear suspension. There’s also a ton of new tech features, including push button start standard and an all-new MyFord Touch system.

But the engine lineup? For all the hype, I’m still left wanting more than a handicapped V6 and a just-as-thirsty four-cylinder.

For the record, I realize I am indeed whining about a 310 horsepower Mustang that gets up to 32 MPG. It’s pretty good…but so was the 2014 Mustang V6 too. I guess I just expected more, which is supposedly the hallmark of my generation.


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.