Per passenger is a little more difficult with cars but this [1] seems to suggest the average car occupancy rate is 1.59, which brings the F150 up to 33mpg/passe

Per passenger is a little more difficult with cars but this [1] seems to suggest the average car occupancy rate is 1.59, which brings the F150 up to 33mpg/passenger. [1]: https://www.energy.gov/eere/vehicles/fact-613-march-8-2010-vehicle-occupancy-rates#:~:text=The%20average%20number%20of%20persons,to%201.92%20persons%20per%20vehicle https://www.energy.gov/eere/vehicles/fact-613-march-8-2010-v....