Best way to clean radiator

Jmunk

Member
Sep 30, 2007
95
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I recently changed to a 180 thermostat and when the coolant was drained out of the radiator I noticed corrosion on the fins of the interior of the radiator. It seemed to be a good amount at in some places. Anyone have any methods for cleaning/flushing it out ? I searched and found that some people use vinegar to clean it out, anyone with experience?
 
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