Average fuel mileage on a 35' with the V10??

You don't say what year you're thinking about but here is what mine has averaged. It's a 30" 1998 Itasca over a 1999 V10. I pull a Vibe on a Demco KarKaddy dolly all of the time and generally run 62 MPH on interstates and 56 MPH on other roads. As you can see by the map below we've travel in all types of terrains.

In the 10 years and 54,000 miles that I've had it the average mileage has been 8.14 MPG with a three tank average between 7 to 9 MPG. These include limited generator use.

Dave