Make sure you add Fuel Additive to the engine and fuel system in your 2018-2021 Ford 3.0L Powerstroke at every fill-up. Additives are formulated to provide your engine with what it needs to improve performance, reduce smoke, and clean engine and fuel system components. In addition to additives that enhance lubricity and cetane, other additives are designed specifically for cold weather and to reduce fuel gelling and provide winter protection. Find the additives you need in your vehicle from the top brands like FPPF, Hot Shot's Secret, Lucas Oil, XDP, and more!