"This truck pulls my 41 Ft RV. It's amazing how well it does its job day after day. Noise level similar to a car, engine very quiet. Best feature, F450 has extremely tight turning radius, better than F350 or GM or Ram HD trucks. No dealer return for any reason, except oil and lube. The power of the 6.7 is more than enough to do its job. Very happy with my purchase!"