Join Date: Nov 2009
Location: Ukiah, Ca
Thanked 180 Times in 155 Posts
Unless your present coolant is oil filled and cruddy, I would not use chemical flushes. I flushed mine with water and then with distilled water. Distilled water is important as regular tap water has minerals in it that can clog the radiator and oil cooler.
2004 Ford F-350 Regular cab with 6.0.
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