A 3.3-liter naturally aspirated V6 joins the lineup, while the existing EcoBoost V6 and 5.0-liter V8 have been retuned for higher output.Ford has detailed several powertrain improvements for the 2018 F-150 and Expedition families.
The current 3.5-liter naturally aspirated V6 has been dropped in favor of a smaller 3.3-liter mill that benefits from a modern dual-port and direct injection system. The downsized powerplant brings a modest increase in output to 290 horsepower and 265 pound-feet of torque.
Engineers also reworked the company's 2.7-liter EcoBoost V6 engine for higher torque output, delivering 400 pound-feet (up 25 lb-ft) and maintaining outgoing engine's 325 horsepower rating. Vehicles powered by the turbocharged engine will also benefit from a 10-speed automatic transmission.
Dual-port and direct injection have reached Ford's venerable 5.0-liter V8. Output has been elevated to 395 horsepower (up 10 hp) and 400 pound-feet of torque (up 13 lb-ft).
Buyers early next year will be presented with a new 3.0-liter V6 diesel engine, paired with a 10-speed automatic gearbox to help minimize fuel consumption. The company is not yet disclosing specific EPA mpg estimates for the new diesel and gasoline engines, however.
The automaker has confirmed power specs for the 2018 Expedition. The SUV will be available with two 3.5-liter turbocharged V6 engines, one with 375 horsepower and 470 pound-feet of torque and another with 400 ponies and 480 pound-feet of twist.
The new Expedition is slated to land in showrooms this fall.