Today’s question. After some 37 years of having some 6 motor home, I am going to a large (43 foot) 5th wheel pushing close to 17,000 lbs.
I am not a Diesel engine fan, but not completely closed to the idea. I am looking a two different Dodge 3/4 ton trucks that are capable of towing this rig. One has the 6.4 heavy duty HEMI and the other the 6.9 Cummings. Now I have heard all the usual, you need a diesel for the torque and better fuel mileage, blah, blah... I currently have a 38’ motor home, that I put a 350 lb motorcycle on the back, towing a 4 door Dodge Dakota with a golf cart in the rear, powered by the Triton V10 and I am well within its combined gross weight. I am not trying to run a race and if it lugs some in the mountains, so what.
The real question I have is what kind of realistic fuel mileage will I get on gas verses diesel so I can honestly figure if a diesel is worth the extra cost of the diesel truck, considering the price of diesel along with the DEF fluid.