FSRBIKER Posted July 27, 2006 Share Posted July 27, 2006 Anyone know the best way to clean the inside of the radiator and overflow tank to get rid of the residual oil from the blown head gasket? Quote Link to comment Share on other sites More sharing options...
Jerry DeMoss Posted July 27, 2006 Share Posted July 27, 2006 The radiator is best to go have it hot tanked.Same for the overflow. Quote Link to comment Share on other sites More sharing options...
NorthWet Posted July 27, 2006 Share Posted July 27, 2006 Any of the detergent-based cooling system cleaners should work. Quote Link to comment Share on other sites More sharing options...
nipper Posted July 28, 2006 Share Posted July 28, 2006 the older subaru section loves to use DAWN dishwashing liquid. nipper Quote Link to comment Share on other sites More sharing options...
porcupine73 Posted July 29, 2006 Share Posted July 29, 2006 FYI, I used Prestone Radiator Super Cleaner not too long ago, and man that stuff makes the coolant foam like it's a washing machine. I built my own cooline system flusher with a 3/4hp pump from Harbor Freight, some PCV piping and valves, and hose, and flushed about 10 gallons distilled water through a couple times, and it was foamy like washing machine discharge. [remove thermostat, reinstall housing incl/ gasket, pump into water pump intake, collect discharge at radiator outlet] -Louis Quote Link to comment Share on other sites More sharing options...
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