You'll be fine - just fill up the tank early and often! My mileage was averaging ~27 on the interstate. Then, pulling the big boat, I was getting 11.I’ve got an 800 mile drive tomorrow pulling a small camp trailer on my JLRUD. All freeway driving. I imagine it will be fine but we’ll see. Probably the biggest effect will be on gas mileage. The vehicle is 100% stock.