Keep the engine and fuel system in your 1998.5-2002 Dodge 5.9L 24V Cummins clean with Fuel Additive. Many fuel additives enhance lubricity and cetane while others are specifically designed for cold weather and to reduce diesel fuel from gelling in cold weather. 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. Find the additives you need in your vehicle from the top brands like FPPF, Hot Shot's Secret, Lucas Oil, XDP, and more!