Water… Distilled? Purified? Hose??

pt70 said

Don't use dexcool, it doesn't mix well with others. My PT has had hoat in it for years. Black one gallon jug. Bought from the Chrysler dealer. About $25 a decade ago. Its a peach color. It still looks like new in the plastic overflow tank. The engine is cast iron with an aluminum head.

That chart may be wrong. I saw a new 2015 Chrysler 200 in the showroom and it had purple colored coolant in it. ???

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Different manufacturers use different dyes for different formulations. The big thing is to not mix different "flavours" as they do not play well mixed. Put in the same juice it came with. On a complete overhaul where the radiator and heater are flushed aand the cooling cores in the block and heads are cleaned, you could change to one of the newer coolants. Some of these have lower toxicity than the ols green stuff.