A 3.5 liter ecoboost is only 213 cubic inches. I can routinely get 24 mpg at 65 mph and 27 mpg at 55 mph. Of course any city driving kills the averages. My latest composite average for the last tank in the warmer weather is 19.7 mpg. I thought the goal here at ecomodder was improved mpg's through aero not hating on Fords or anything else?
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