I occasionally drive a Ford F350 SuperDuty diesel. For a truck, diesel is really the way to go. It can pull a house, uphill, with a headwind, in a snowstorm. No petrol engine comes close in the torque department, especially at low speeds. Noisy as hell and slow as a turtle off the line but that's not what the vehicle is about. Fuel savings are considerable of petrol equivalent in this vehicle.