The 2006 Itasca Navion 23j is a Class C motorhome powered by a 2.7 inline 5 cylinder Mercedes Bends turbo- diesel that delivers amazing torc and exceptional performance with an estimated 15 to 19 miles per gallon. This RV won't make you nervous navigating tight locations. It is more like driving a car. With only 64,980 miles on the odometer, this diesel engine and RV has plenty of adventures left to offer.