Oxalic acid (wood bleach) to clean the heater core??????
11-08-2010, 08:22 AM
#1
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Oxalic acid (wood bleach) to clean the heater core??????
Can I use oxalic acid to clean clogged heater core?
I back flushed the heater core last year, with the regular instructions and the heat came back for 3 weeks. After that it got clogged again.
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If I do the engine coolant flush with oxalic acid, would that hurt?
Any reason why I should not do it?
I back flushed the heater core last year, with the regular instructions and the heat came back for 3 weeks. After that it got clogged again.
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If I do the engine coolant flush with oxalic acid, would that hurt?
Any reason why I should not do it?
11-08-2010, 11:16 AM
#2
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Oxalic acid is a good aluminum brightener, and cleanser (Bar Keeper's Friend) but I don't think I'd use it in the cooling system. I used Prestone cooling system cleaner just in the heater and it worked out well.
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