Thanks. I have a 2021 5.7 and average 10-11 mpg pulling our travel trailer and some guys on the 5th gen form are getting 14ish with the same size and weight of our trailer. And also the 25 to 30 mpg on the hwy, compared to my 18ish. I've had two 6.7 Cummins and I guess I'm just missing the torque while towing.