We’ve already seen the official power and torque numbers tied to the 2011 Ford F-150 EcoBoost, but the automaker just released additional figures -- this time tied to fuel economy.
According to Ford, the EPA has rated the F-150 built with the twin-turbocharged 3.5-liter EcoBoost V-6 at 16 mpg in the city, and 22 mpg on the highway. That rating eclipses the city rating of the Chevrolet Silverado XFE (15/22 mpg), which is fitted with a 315-horsepower, 335-pound foot, 5.3-liter V-8. The Silverado/ GMC Sierra Hybrid beats the EcoBoosted F-150 with a 20/23 mpg rating, but its 6100-pound (2WD) tow rating does fall short of the Ford.
That’s where Ford is claiming its biggest victory, in providing exceptional fuel efficiency with a torquey twin-turbo, gas direct-injection V-6 that maintains big V-8 towing capacity. Ford affixes the EcoBoost F-150 with a maximum towing rating of 11,300 pounds. In contrast, the Chevy Silverado XFE can tow up to 10,000 pounds.
The Ram 1500 with a 5.7-liter Hemi V-8 comes closest to Ford’s metrics with a 10,450-pound tow rating, but its EPA numbers are 14/20 mpg. The Toyota Tundra is next, with 10,400 pounds and an EPA rating of 14/18 mpg when fitted with a 5.7-liter V-8.
Ford’s 3.5-liter EcoBoost engine is rated at 365 horsepower at 5000 rpm, less power than the Hemi Ram’s 390 horsepower and the 381 offered by the Tundra’s 5.7-liter engine. Ford makes up for the difference with a torque rating of 420 pound-feet at 2,500 rpm. The second torquiest engine in the bunch is the Ram’s 5.7-liter Hemi, with 407 pound-feet at 4200 rpm.