The Ford Super Duty trucks are the definition of dependability. When it comes to utility, the mighty 6.7L Powerstroke under the hood is more than capable of towing, hauling, carrying, and just about every other activity these pickup trucks were designed to handle. While Ford intended for the Powerstroke to endure extended punishment, some of the engine bay components (specifically the secondary degas tank) might not last as long.
Ford's 6.7L Powerstroke has two cooling systems. The first is tasked with keeping the engine internals cool, as is the function of most cooling systems. The second is employed primarily to reduce the charged air temperatures within the air-to-water intercooling system. Expansion, or degas, tanks are required on both systems and allow for hot gasses