How to Add Antifreeze to a Jeep Grand Cherokee

Written by william garmany
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How to Add Antifreeze to a Jeep Grand Cherokee
The right mixture of antifreeze and water will keep you from needing radiator service. (radiator humour image by John Sfondilias from

Antifreeze is essential in every car's cooling system. Antifreeze keeps the vehicle from getting too hot -- and even too cold. The recommended antifreeze for the Jeep Grand Cherokee is Mopar Antifreeze/Coolant 5 Year/100,000 Mile Formula. Checking and adding necessary antifreeze to the Jeep Grand Cherokee is an uncomplicated task. Doing it at home will save you the expense of taking the car to a mechanic.

Skill level:

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Things you need

  • Antifreeze
  • Water

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  1. 1

    Open the bonnet of the Jeep Grand Cherokee after the vehicle has been turned off and the engine allowed to cool.

  2. 2

    Check the fluid levels in the coolant reserve/overflow tank by examining the fluid level lines. Open the radiator cap and see if antifreeze comes to the top of the radiator. Once you have ascertained that you need to add antifreeze, continue to the next step.

  3. 3

    Add the proper mix of water and antifreeze -- a minimum 44 per cent antifreeze, a maximum 68 per cent antifreeze -- to the radiator until full. Replace the radiator cap. Add the same mixture to the reserve/overflow tank up to the full mark.

  4. 4

    Start the Jeep Grand Cherokee and turn on the heater to maximum. Allow the car to run until normal operating temperature, then turn it off and allow it to cool again.

  5. 5

    Add coolant to the reserve/overflow until it is back to the full mark. The process of starting the car, turning it off and topping off the reserve/overflow may need to be repeated three times to purge the cooling system of air.

Tips and warnings

  • Using the recommended antifreeze will ensure that you are using the same product as the manufacturer.
  • Mixing antifreeze types or adding coolant to a warm engine may damage your engine. Always add coolant after the engine has cooled.

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