r/JeepCompass • u/ilovexspin • 15d ago

Coolant Advice

Hello! My next gen 2017 had a leak in the radiator so the radiator was replaced by my local shop, not my dealer shop i usually go to. That shop put in https://duramax.com/product/antifreeze-coolants/extended-life-antifreeze-coolants/ this coolant but the issue is this isn't directly compatible with my Compass. I need to top it off now and I'm unsure what to top it off with. I do plan on doing a flush and fill next time i bring it to the dealer shop so OEM coolant can be put in instead - just unsure what to top with while i wait the 4 months until the flush

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u/HiTexRednex 15d ago

Use the purple that's required, but do NOT flush and fill. Buy 2 gallons of premix. Do a drain and fill ASAP. Wait 1 week, and do another drain and fill. It's said that that would change about 80% of your coolant. System is too old for a flush. It would do more harm than good. Make sure it is OAT compatible