Upcoming Ford Mustang EcoBoost Fuel Mileage Figures Leaked

There’s been much speculation about how well Ford will do with its upcoming Mustang models. Between criticism over adopting an independent rear suspension, speculation over dramatic weight increases (which have largely been proven false) to whether customers will buy-in to the existence of a four-cylinder model for the first time in over 20 years.


As details start to be released ever so slowly, we do know that the upcoming turbocharged 2.3-liter EcoBoost engine will produce 310 horsepower and 320 pounds-feet of torque. And like most EcoBoost models in Ford’s grand scheme, will be the middle player in a three-engine lineup. The base 3.7-liter V6 will have 300 horsepower and 280 pounds-feet, and the 5.0-liter V8 will top them all with ratings of 435 horses and 400 pounds-feet.

And as mentioned above, the model-to-model curb-weight increases range from anywhere from six-to 54 pounds from 2014 to 2015.

And the final, albeit officially unconfirmed, bit of data — some fuel efficiency figures — comes from a leaked window sticker for the ’15 Mustang, which was posted on a fan site.

While not all of the Mustang’s variations are legible, one of the most important is this: EcoBoost with a six-speed manual transmission gets 22 mpg in the city and 31 mpg on the highway. The base V6, also with the manual, gets 17 mpg city and 28 highway. When equipped with a six-speed automatic, the V6’s city figure drops to 19 mpg, but the highway figure remains unchanged.

Also, as GCR points out, the 2015 ratings for the V6 are lower than those in the 2014 model.

Figures for the EcoBoost and automatic, and anything for the V8s, remain unavailable.

Given that Ford has been burned twice in recent years with overly-optimistic fuel efficiency ratings, both for its hybridized offerings and the new Fiesta 1.0-liter EcoBoost, the company can’t be blamed for taking a more conservative approach to its estimates.

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