With just rear-wheel drive, the 2017 F-150 with the 3.5-liter EcoBoost manages 18 mpg city, 25 on the highway for a combined 21 mpg, representing a one mpg increase in all categories over the previous model.
With four-wheel drive, the F-150 gets 17 mpg in the city, 23 on the highway and a combined 20 mpg, a two mpg increase in the combined category and one mpg better in city and highway.
Besides the extra fuel economy, this powertrain also has added powered, making 375 horsepower and 470 lb-ft of torque, a boost of 10 hp and 50 lb-ft compared to the 2016 truck. Ford also claims that the addition of the new 10-speed transmission will help with low-end torque getting to the ground.
The second-generation 3.5-liter EcoBoost uses plenty of new components includes a new twin-port and direct-injection fuel system, lighter and stronger crank and valvetrain components, redesigned turbos and more.
The 2.7-liter EcoBoost and 3.5-liter EcoBoost account for 60 percent of all Ford F-150 sales.
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