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Old 04-10-2019, 10:56 AM   #8
philipswanson
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Join Date: Oct 2015
Location: Bonita, CA
Posts: 1,374
Default Re: White vinegar as radiator flush

Put two cups of straight phosphoric acid in it, then flush with backing soda after a couple of hundred miles. Repeat as necessary. You might have to do this several times in a really bad system. If you have a clogged radiator, reverse flush or rod out.
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