[chrisg1012]

Whenever I bought my durango I noticed the coolant was orangish and thought it must be a different type of coolant or some corrosion in the radiator underneath it that’s making it appear that way. Regardless I was going to do a flush
Upon buying my first jug of g0-5 I discovered it was actually more yellowish.
Once I drained the radiator I discovered the coolant was was very orangish very similar to dexcool I’ve used in my gym vehicles.
I assume the coolant was dexcool.. which isn’t correct for these vehicles. Instead of doing an ordinary flush should I do a chemical flush? For example the prestine flush ?
I’ll also be doing the thermostat while I’m at and and now considering the radiator due to the amount of corrosion I can see at the top


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[Skippy426]

The mopar coolant is that orangey color, zerex has a more yellow color. When I did my thermostat I used zerex and never had an issue.

Just to be safe I’d drain and flush it... you really really don’t want to mix an HOAT coolant (oem Mopar up till about 2013 and zerex) with OAT coolant (oem mopar 2013+). Doesn’t help there’s like 4 different colors...

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[chrisg1012]

The mopar coolant is that orangey color, zerex has a more yellow color. When I did my thermostat I used zerex and never had an issue.

Just to be safe I’d drain and flush it... you really really don’t want to mix an HOAT coolant (oem Mopar up till about 2013 and zerex) with OAT coolant (oem mopar 2013+). Doesn’t help there’s like 4 different colors...

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Okay then that would make sense. I bought the zerex. I did top it off but probably didn’t even put 20 miles on it since then. I planned on flushing it anyway due to I’m not sure when the last time it was done. I just wasn’t sure if it was worth doing the chemical flush if it was dexcool
Thanks for the info


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[COBrien]

I went through this confusion with my 2013 Wrangler, when I had to flush the heater core (don't get me started...). The OAT coolant on board is pink/orange, and what I got from the dealer is purple. I was thinking the factory had put HOAT in it, and was avoiding mixing them and creating (more...) sludge.

The tech at the local dealership told me that OAT turns pink/orange after years of heat cycles. Told me about a training he received -- just a couple weeks prior -- where the instructor had two milk jugs, one full of used (~30k miles) OAT, and one full of new HOAT, and offered $100 cash to the first tech who could tell him which was which, and could explain how they could tell. Nobody walked out with that $100.

 

[Don Fox]

Chris;
You don't mention what year your Durango is that I can see in your post. My '01 Durango had the ages old green antifreeze in it from the factory. My 04 Durango along with my wife's previous '05 Grand Caravan had the orange coolant. It was spec'ed at 5 years OR 100K to be replaced. When replacement time came, I went back in with the gold colored Peak Global GO-5 coolant which is advertised as a lifetime fill.

My '14 Charger R/T has the purple stuff, and is spec'ed at 10years or 150K miles of life.

Don

 

[chrisg1012]

Chris;
You don't mention what year your Durango is that I can see in your post. My '01 Durango had the ages old green antifreeze in it from the factory. My 04 Durango along with my wife's previous '05 Grand Caravan had the orange coolant. It was spec'ed at 5 years OR 100K to be replaced. When replacement time came, I went back in with the gold colored Peak Global GO-5 coolant which is advertised as a lifetime fill.

My '14 Charger R/T has the purple stuff, and is spec'ed at 10years or 150K miles of life.

Don

Sorry Don for the late response, 07 hemi


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[DuRonbo]

Orange it is!

 

[chrisg1012]

Drained and refilled until it came out clear, now just need to do the thermostat and refill with the zerex g-05


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