I am currently getting SIX MPG!!! Towing a 3,000lb travel trailer averaging 68-70mph. I am astonished. My 18 f-150 with the 3.5 had a 36 gallon tank and would get 9mpg towing the same trailer with a WAY bigger range. I am hoping the motor still isn’t broke in and will get better over time. This is crazy. Full tank only gets me 126 miles. This road trips gonna take for ever. Is this correct or is something wrong?