The Jeep Commander, depending on the year and engine, requires either Dex-Cool (a type of HOAT - Hybrid Organic Acid Technology antifreeze) or a 50/50 mix of ethylene glycol antifreeze and distilled water.
To know for sure what your specific Jeep Commander needs, check your owner's manual. The manual will specify the correct type and the recommended mixture ratio. Using the wrong type of antifreeze can damage your engine.
