How To Test Engine Coolant/Antifreeze Using a DMM

A simple way to test/check the condition of engine coolant(antifreeze) in your vehicle using only a digital multimeter. The first test is performed with or without the engine running once the engine has been allowed to reach "Normal Operating Temperature" with the radiator cap OFF. The 2nd test is done with the engine OFF. Enjoy!

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DISCLAIMER: Working on any engine that's hot or running can be very dangerous. Do as shown in this video at your own risk. The viewer accepts full responsibility for any injuries or deaths that may result his/her actions or inactions while performing the test shown in this video. Make sure long hair has been tied back, and no loose clothing is worn. If you disconnect the battery cable on your vehicle, you may have to reprogram certain components. Once reconnecting the battery, always allow the engine to idle a few minutes with all accessories turned off before driving.