I can't tell you what coolant you have in there now. If it's the original coolant it should say in the owners manual. According to the Zerex chart it should be G-05 in a Chrysler/Dodge 2002.
It doesn't have to be Zerex. And, color is not a great indicator of what type of coolant it is because many brands use different colers for the same thing.
Whatever, if it were me, I'd do a distilled water flush series (several distilled drain and refills), to get the old stuff out. Then go with a concentrated(not50/50) coolant to 50% of system capacity and top off with distilled water.
G-05 though sometimes difficult to find, prolly best bet for you.