DEARBORN, Mich. (AP) — Ford says its new aluminum-bodied F-150 pickup will get up to 26 mpg on the highway, making it the most fuel efficient gas-powered full-size pickup. The Ram truck is the current leader among pickups, getting up to 25 mpg on the highway with a gas engine. Fuel economy is a key data point for the new F-150, which is arriving at dealerships this week.