Rick's Free Auto Repair Advice

Posts Tagged: test engine coolant

Test Engine Coolant

How to test engine coolant Testing coolant freeze protection is just part of the picture You can test coolant freeze protection with an inexpensive tester from any auto parts store. But protecting against freezing is only part of what coolant does. Coolant also lubricates and protects the radiator, heater core, tubing and water pump from corrosion. The anti corrosion additives wear out long before coolant loses its freeze protection and old coolant can contain acids that damage the internal components. That’s why you can’t rely on a coolant freeze protection … Read More


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