EdNdonna wrote:
I wonder why they are not used in the new Rv,s?
The choice of engine is tied to the choice of frame. About the time that the Duramax had been proved in pickups and light duty trucks, GM got out of the frame business and there is no other independent frame builder of lighter duty frames other than Ford. Ford, of course, will only use their engines. The other factor is cost of a diesel engine vs a gas engine at the 30'+/- price points.
At this point, I have returned from my 8,424.6 mile trip and the fuel mileage to date is 14.2 mpg. I switched the banks tuner to the economy setting for the last 5 tanks of fuel and for those 5 tanks the mileage has been 15.08 mpg. That was from Michigan to Oregon via I-90, I-84 and {-5 most of the way. We will see what it does over time.
Take care,
