Flush the radiator in your 2003-2004 Dodge 5.9L Cummins with the correct Coolant & Additives. Full synthetic and conventional antifreeze with supplementary ingredients provide you with a service life from 150,000 and 750,000 miles. With the help of these additives, cooling systems will operate more effectively, corrosion will be prevented, warm-up times will be shortened, and engine temperatures will drop. Top manufactures like DEI, Royal Purple, Mishimoto, Evans, Hot Shot's Secret, XDP, and Lucas Oil are offered by XDP.