My old 2001 Silverado got 22-23 on the highway, with cruise on at a constant 70 mph. It was geared 3.13 rear end.My current 2013 Silverado got 17.7 on the highway, with cruise on at a constant 70 mph with the 3.42 rear end ,om my trip to Sask.. I have heard that the Ford Eco-boost doesn't get anywhere near the advertised 23 mpg on the highway and has mileage closer to Fords standard V8. That is exactly why I didn't get a Ford with Eco-boost which is a 3000 dollar option. The truck you seek does not exist......sorry.