I searched and searched before giving up and buying our used 2014 Coachmen Freelander. My quest was to find out the MPG I might expect. I would have been very happy with 10 mpg, and happy with 9. At 7-8 mpg I would have been content and acceptable at best since that is what the dealership told me to expect.
We have a used 29QB on a Ford with E450 Super Duty chassis with 15,000 miles on the odometer and with "empty" weight. We have been very pleased to be getting a fraction over 12 miles per gallon.
We know that will go down as we begin to load the vehicle, but, at least, we're at a mpg-number the is very acceptable. If we want to keep the mph at 12 or around the 12 mpg figure, it will be up to us to pack accordingly and not to tow.
I HOPE OTHERS, LOOKING INTO C-CLASS RVs WILL FIND THIS INFORMATION HELPFUL. MANY WOULD FIND IN HELPFUL IF OTHERS WOULD PUBLISH MPG FIGURES ON THEIR RESPECTED RVs.
Hope many will find this information helpful in deciding on their C-Class RV. So far we give our RV, the "Fieldtripper" at 10.
It would, however, be helpful if there was a Collission Avoidance System that would be appropriate for this type of vehicle.
Paul and Carla
"Fieldtrippers"