Thread: Can I use CLR in engine to clean cooling system?
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Old 03-14-2007, 11:23 PM
SD Blue SD Blue is offline
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Join Date: Jun 2004
Location: West of Ft. Worth. TX
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Isn't CLR a weaker solution of phosphoric acid?

I agree, an acid like that might do more damage than debris breaking loose ever thought of doing.
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84 300SD 350K+ miles ( Blue Belle )
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