21 JL 3.6L coolant lifecycle/flush cycle?

[mishkajb]

I looked around the forum and don't see anything about this. With the new coolant technology, is there a lifecycle for this colored fluid? Does it need to be flushed and replaced at a certain cycle?

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[Blacksport]

I'd change it...don't really buy into that lifetime crap. EASY...get a gallon of this part # 68163848AC and a gallon of distilled water. Have an empty container to mix them, and a big plastic pan to catch the coolant (12 bucks on Amazon). Disconnect the bottom hose, you might want to replace the clamp with a screw clamp. Open the top cap. Reconnect bottom and fill with the 50/50 mix, engine COLD! Start up, turn on heater, add more mix until full. Check the level tomorrow.