2021+ Ford F150 Ecoboost
I just traded in my 9000lb 5th wheel for a 6000lb travel trailer - and my gas mileage has dropped significantly from 25l/100km (9.4mpg) to 34l/100km (7mpg)!! Truck running normally @ 2.2 rpm - flat roads - no brake smell - no difference in eco vs tow mode - doesnt make sense.
Anyone able to shed...