The empty mileage on the highway/mixed commuting is 65-75mph cruising mixed w/ some in town driving.I'm getting 18mpg driving empty, mostly highway
I mostly drive my truck empty. I get about 17-19 mpg average. thats with the cruise on highways at 58 mph...
Thank you. The reason why I tow that at that speed is the speed limit on that paticular is 75mph towing or not.... I will try and back it down a few mph and try that!Been my experiance that mileage drops off dramatically above 70mph, with my best numbers coming when I run around 1800 rpm. Pushing 80 is pretty fast for that much weight, and I would guess you would see big improvement with a more conservative speed. JMO.