Get the Coolant & Additive product you need when flushing the cooling system in your 2007.5-2018 Dodge Ram 6.7L Diesel. You can find engine coolant and additives that offer 150,000 to 750,000-mile service life. The additives available will reduce engine temperatures, minimize surface tension for more efficient cooling, prevent corrosion, and offer faster warm-ups. Evans, Hot Shot's Secret, XDP, Lucas Oil, DEI, Royal Purple, and Mishimoto are just some of the top manufacturers available at XDP.