Quote:
Originally Posted by thstone
Flush and refill with OEM coolant and distilled water. Simple and guaranteed no risk.
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When I am flushing my cars, after draining the old fluid I fill the system with destilled water, run the engine until the thermostat opens, let it cool, drain (repeat..) until the water comes completely clean..
Thereafter, I fill it with a mix of the OEM coolant mixed with destilled water (never tap water).