The EcoBoost engine is a turbocharged 2.0-liter four-cylinder that is a $995 option on front-drive versions of the 2012 Explorer instead of the standard 3.5-liter V-6. It generates 240 horsepower and gives the Explorer EPA fuel economy estimates of 20/28 mpg city/highway. With the V-6, the Explorer has EPA ratings of 17/25 mpg.
The EcoBoost four-cylinder is available in the Ford Edge crossover SUV, and that vehicle is rated 21/30 mpg because it comes with grille shutters that close to improve aerodynamics. (The Explorer doesn’t have that feature.)
Ford is using turbocharged V-6 engines in cars such as the Ford Taurus SHO and its F-150 pickup to generate the power of a larger engine with the fuel economy of a smaller one.
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