Man! 13-15 mpg for your Sprinter? I got 22mpg driving across country at 70-75 mph. I get 18-20mpg in town. It is a 2012. When I first got it, it was filled with racks and shelving. Now it has a jackknife sofa, wetbath, 600 watts of solar on the roof, two 400amp hour LiFePo batteries, fridge. I am still working on it, need to put the kitchen cabinets and the sink in and black/gray water tanks underneath, but I am almost done. Not sure why yours is so bad on diesel, but sounds like something is wrong.
Man! 13-15 mpg for your Sprinter? I got 22mpg driving across country at 70-75 mph. I get 18-20mpg in town. It is a 2012. When I first got it, it was filled with racks and shelving. Now it has a jackknife sofa, wetbath, 600 watts of solar on the roof, two 400amp hour LiFePo batteries, fridge. I am still working on it, need to put the kitchen cabinets and the sink in and black/gray water tanks underneath, but I am almost done. Not sure why yours is so bad on diesel, but sounds like something is wrong.