We have a gas Holiday Rambler 2006 37 ft class A. It has a Ford V6 motor. We have not gone many places with it. My husband says that to go across country we would need to get a diesel because he does not want to drive a gas in the hills and mountains etc. I am pushing back on getting a new motorhome. I would like your thoughts on whether or not a gas coach can go across country. My husband says it is hard to drive in hilly areas and he needs a diesel. I have not written anything on these forums before so appreciate your thoughts.