Join Date: Aug 2019
Location: Evergreen, Colorado
We have 2014 Cayenne diesel. Experiencing 15-20 mpg but there are so many variables. Wind speed and direction, the speed you plan to travel, the wind resistance of your trailer, your elevation gain. The diesel is powerful enough for your towing. Setting an expectation of mileage is a pretty open question, and if you want better mileage ... go slower. We tow a tall horse trailer and an open flat bed track trailer. I give thumbs up on the utility of the car for these two trailers.