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Old 09-22-2003, 05:53 AM
vince vince is offline
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Join Date: Jan 2000
Location: Chesapeake, VA
Posts: 396
I don't know about anything about the citiric acid product and am not familiar with the diesels. However, I would be surprised if there were sufficient "crud" in the system to warrant a flush. A coolant change ensures that the corrosion inhibitors in the coolant are fully capable of doing their job. That is the primary reason for changing the coolant.
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