Chrysler uses their own special formula of coolant, which is actually a hybrid, that is cross between ethylene glycol based coolant(green) and the organic acid technology (orange) coolant, comonly known by the brand name Dex-cool. It is identifiable by it's distinct red color. Some may cofuse this with the orange Dex-cool, but it is not the same thing, and should not be mixed. In other words Chrysler coolant is unique, and you should only use coolant specifically made for Chrysler vehicles.