V6 Turbo is More Boost Than Eco - 2015 Ford F-150 Long-Term Road Test

2015 Ford F-150: V6 Turbo is More Boost Than Eco

August 11, 2015

2015 Ford F-150

This is getting exasperating. Our 2015 Ford F-150 is on the doorstep of 15,000 miles and its 2.7-liter EcoBoost V6 engine is showing zero signs of Eco. Sure, our truck's lifetime average ticked up from 15.9 to 16.2 mpg this month, but its EPA combined rating is 20 mpg.

The picture doesn't get much better when I ignore the miles it has spent towing. Its lifetime average rises to 16.6 mpg, but EPA combined still seems impossibly far off.

It's not for lack of trying. On more than one occasion I tried to eke out a good performance on an all-highway tank, aiming to see if I could nip at the heels of its 23-mpg highway rating. In late May, my efforts were rewarded with an overall best tank of 19.1 mpg. No one has beat it since.

From where I stand, the 2.7-liter EcoBoost fuel economy ratings are bunk.

Meanwhile, the same driver pool is matching and even exceeding the Ram 1500 EcoDiesel's EPA ratings. Regularly, I might add, and with relative ease.

I'm heading out on a road trip to Oregon in the next few days. Maybe I can break 20 mpg on at least one tank. Wish me luck. I may even break down and try filling up with premium, even though the EPA rating are supposed to be achievable on regular 87-octane fuel.

Worst Fill MPG: 13.3
Best Fill MPG: 19.1
Average Lifetime MPG: 16.2 (6.2 gallons per 100 miles)
EPA MPG Rating: 20 Combined (18 City / 23 Highway)
Best Range: 557.3 miles
Current Odometer: 14,957 miles

Dan Edmunds, Director of Vehicle Testing @ 14,957 miles

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2015 Ford F-150 Research