Update: Since there was not a lot of information available on the F-150 normally aspirated 3.5 V-6, I purchased one from the local dealer to find out for myself. So far, it has been very good. After 4,000 miles, the mostly highway mileage is 22.5 mpg. Towing a 3,000 trailer through the rolling hills of Texas, it gets 15.0-17.0 mpg, depending on my right foot. I have not tried to tow my 6,000 pound travel trailer, but with over 1,600 pounds of payload, it should handle it even if it is a little slow. I plan to travel with the lightweight anyway. Seat of the pants feels is as quick or quicker than my 5.4 V-8 F-150's. No ecoboost, but that is not what I wanted