Make adding Fuel Additive to your 2007.5-2018 Dodge Ram 6.7L Diesel a routine during every fill-up. Some additives enhance fuel system performance, while others are made specifically for cold weather and to reduce fuel gelling in winter temperatures. Additives are specially formulated to provide your vehicle with the ability to clean and maintain the components in your engine and fuel system, reduce smoke, and improve engine performance. Put the additives you need in your vehicle from brands like XDP, FPPF, Hot Shot's Secret, Stanadyne, and more!