The diesel is very good and thats about it. Poor brakes, dash bad plastic, very bad electrical system, and heater doors are plastic and break easy. The diesel will pull a big 5 th wheel no prob. The transmission needs a lower 1 sr gear for a heavy load. Ride is stiff unloaded. Mileage is 13 towing, 15 in town and 25 open road empty. Only reason I bought this was the Cummins engine to tow with.