Ford's boost in gas mileage carries over into the 2013 Edge crossover; V-6 and all-wheel-drive versions still aren't as fuel-efficient as the front-drive models, and the newest turbo four is the best of all.
The new EcoBoost four isn't the base engine, however. It's an option on Edge SE models and on higher trim levels. The turbocharged 2.0-liter four teams with a six-speed automatic to channel 240 horsepower and 270 pound-feet of torque to the front wheels for a best-in-lineup 21/30-mpg rating from the EPA. That's an excellent set of numbers for the five-passenger crossover market, though vehicles like the Chevy Equinox and GMC Terrain post even higher highway numbers.
The Edge's EcoBoost engine incorporates lots of technology to get its high gas mileage. Direct injection is a big factor in fuel economy, but Ford also uses lower rolling-resistance 18-inch tires to cut down on friction, while it also employs an active aerodynamic grill that closes at lower engine temperatures, improving airflow and reducing drag.
Other models aren't quite as frugal as the EcoBoost Edge. The front-drive Edge with Ford's 3.5-liter V-6 is rated at 19/27 mpg; adding all-wheel drive drops figures to 18/25 mpg. The 3.7-liter Edge Sport starts out at 19/26 mpg, a 1-mpg improvement on both sides over the 2012 model. An AWD Edge Sport has the least efficient drivetrain, at 17/23 mpg.