The 2017 Ford F-150 will be gaining up to two more miles in mpg over the 2016 model due to a new 3.5-liter EcoBoost engine and 10-speed transmission, Ford said today.

The 4×2 version of the F-150 is EPA-rated at 25 mpg in highway driving, 18 mpg in city driving and 21 mpg combined with each figure coming in 1 mpg higher than 2016, according to Automotive News. The 4×4 version has a combined rating of 20 mpg, a gain of 2 mpg. Highway and city ratings each seen an increase of 1 mpg, to 23 and 17 in the 4×4.

The automaker said that about 60 percent of F-150s are sold with EcoBoost engines, which use turbochargers to improve performance while saving fuel.

General Motors and Fiat Chrysler will remain competitive, but down 1 mpg in mileage.

The 2017 Chevrolet Silverado with a 4.3-liter V-6 and a six-speed transmission has the same city ratings but falls behind the F-150’s highway and combined ratings by 1 mpg each. The 2017 Ram 1500 with a 3.6-liter V-6 and eight-speed transmission has same the highway rating as the Ford pickup, but is behind by 1 mpg on the city and combined mileage figures.

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The new 3.5-liter V-6 and its first volume-production 10-speed transmission give Ford an edge over rivals when it comes to hauling heavy payloads and towing trailers.

The new engine delivers 470 pounds-feet of peak torque, 50 more than the first generation and more than all diesel and gasoline-powered competitors, Ford said.

The new EcoBoost engine produces 375 horsepower, 10 more than the previous version. That brings in a lot more power than 285 horsepower for the Silverado’s 4.3-liter V-6 and 305 horsepower for the Ram’s 3.6-liter V-6, according to Automotive News.

Truck buyers will also want to hear more details on Ford releasing its F-150 hybrid. In April, AutoGuide reported on spy shots of an F-150 hybrid being test driven at 35 mph. Ford executives had previously said that 2020 will be the release date for a hybrid half-ton, but the prototype implies that a hybrid, and possibly a plug-in hybrid, F-150 may arrive earlier than promised. The hybrid system is expected to be mated to one of Ford’s EcoBoost engines, paired to a 10-speed automatic transmission, according to AutoGuide.

Ford will also need to deal with an investigation of F-150s by the National Highway Traffic Safety Administration. NHTSA has received 25 consumer complaints into the 2015-2016 Ford F-150 pickup trucks equipped with 3.5-liter V6 engines. Some of the complaints include claims of “a sudden and complete loss of brakes,” and the issue could impact an estimated 282,000 units.

Automotive News