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Quote:
Originally Posted by Nlbloch
I have read numerous posts about cleaning the radiator with vinegar. Why not use a commercial radiator flush such as made by Peak? Is this a cost issue, performance question or is Peak to harsh for an old radiator?
If rush is the primary culprit, how about using CLR?
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I tried a couple of those commercial radiator flush products, and they didn't help. For only about $7 for 3 gallons of pure white vinegar, and running it for 30 days did the trick for me. It sure got rid of a lot of rust.