I've seen some old-school recipes using oxalic acid to flush radiators. Anyone here have any experience using this stuff to clean rads? I have an old tractor cooling system to clean, and was wondering how effective this would be. Most of the store-bought stuff is too weak to do much.
Oxalic Acid Flush?
- Thread starter 333jeffery
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JHZR2
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Daimler Benz has always recommended citric acid, which is what I've used when needed...
Good DIY here:
http://dieselgiant.com/mercedes_citrus_flush.htm
Good DIY here:
http://dieselgiant.com/mercedes_citrus_flush.htm
You may find an old time radiator shop that has a large tank to clean radiators. Then they can solder/braze any leaks.
My father used it during the 1970s. He had a 1971 Toyota Corolla that he failed to properly maintain the cooling system.
He said it was incredibly effective. Practically all the sludge was gone, and once he maintained his car properly, his engine stayed clean.
He said it was incredibly effective. Practically all the sludge was gone, and once he maintained his car properly, his engine stayed clean.
The important thing is to remember to deactivate it using baking soda before performing the final water flush.
Originally Posted By: DoubleWasp
The important thing is to remember to deactivate it using baking soda before performing the final water flush.
Good point. Back when my dad used used the oxalic acid in his Toyota, the kit included a chemical that was called the "deactivator."
The important thing is to remember to deactivate it using baking soda before performing the final water flush.
Good point. Back when my dad used used the oxalic acid in his Toyota, the kit included a chemical that was called the "deactivator."
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