Get the Coolant & Additive product you need when flushing the cooling system in your 2019-2023 Ram 6.7L Diesel. The additives available will reduce engine temperatures, minimize surface tension for more efficient cooling, prevent corrosion, and offer faster warm-ups. Full synthetic and conventional antifreeze with supplementary ingredients provide you with a service life from 150,000 and 750,000 miles. Top manufactures like DEI, Royal Purple, Mishimoto, Evans, Hot Shot's Secret, XDP, and Lucas Oil are offered by XDP.