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Old 04-11-2019, 12:01 PM   #21
1952henry
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Join Date: May 2010
Location: North Dakota
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Default Re: White vinegar as radiator flush

Oxalic acid (found in wood bleach, such as Cabots, available in hardware stores) was the ingredient in GMs radiator flush 12-16 ounces with water. Followed of course by a baking soda flush.
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