I don’t know what imaginary world y’all are living in where an Ecoboost F150 is getting 24, or even 20mpg. Based on a hundred million miles worth of data…
Try about 16 on a 3.5 liter:
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And a slightly better 18mpg on the 2.7 liter
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They are good trucks with great power but the “Eco” in the name is nothing more than marketing.