888-695-1728 The 2012 E-Series Wagon Van has three engines to choose from. Standard on the E-150 is a 4.6-liter V8 that produces 225 horsepower and 286 pound-feet of torque. Optional on the E-150 and standard on all E-350 models is a 5.4-liter V8 that makes 255 hp and 350 lb-ft of torque. E-350 buyers can upgrade to a 6.8-liter V10 that churns out 305 hp and 420 lb-ft of torque. Properly equipped, an E-350 can tow up to 10,000 pounds. Fuel estimates vary depending on axle ratios. The 4.6-liter V8 turns in an EPA-estimated 13 mpg city17 mpg highway and 15 mpg in combined driving. The 5.4-liter engine is rated at 121613 mpg for the E-150 and 111513 mpg for the E-350. The 6.8-liter V10 is estimated at 101412 mpg.