Hi Guys, not sure this is the right place for this but here goes. 2020 exp Xlt tow package and 3.73 rear. Towing 25 foot Travel trailer. Vehicle Scale weight with 2 passengers 6080, loaded with trailer , Gross weigh 13560, steer axle 7340, trailer axle 6220. Certified CAT scale. I am getting 7 to 8 MPG. My questions are what am I doing wrong? Makes no difference what mode I run in. Handles well, weight Distribution hitch.
Thanks any input is appreciated.
I believe you did not have the vehicle positioned correctly on the scales when you weighed your rig. There are 3 scale pads on the CAT scale. Front wheels (steer) on furthest forward (1st) pad, back wheels (drive) on middle (2nd) pad and both (or all 3) trailer wheels on furthest back (3rd) pad. You should get 4 weight readings: Steer, Drive, Trailer and Total.
I have a 2017 with HD tow and 3.31 rear axle. When I tow, I use premium fuel and depending on terrain, I get somewhere between 12 and 13 MPG. Towing the trailer empty, I get 15 to 15.5 and highway driving with no trailer I get 20-21.
The gross weight towing with my rig is not much different than yours. I would think that your relatively poor mileage is due more to the "brick wall effect" of the front of the travel trailer being pulled through the air and your 3.73 axle ratio than the weight you are pulling. Do you have pics of truck and trailer together?
How high is the front of the trailer and what does the face of it look like?
Without the trailer connected, what mileage are you getting on a road trip?
When towing are you using premium (93) fuel?
My vehicle
Trip 1 - Car more forward
Steer Axle 2980
Drive Axle 4680
Trailer Axles (dual) 5720
Total Weight Truck, Trailer and Car 13,380
Trip 2 - Car more rearward
Steer Axle 3060
Drive Axle 4520
Trailer Axles (dual) 5900
Total Weight Truck, Trailer and Car 13,480