Mel Posted December 6, 2006 Report Share Posted December 6, 2006 I seem to remember a thread way back, Is it OK to use some kind of soap to clean out the cooling system in a big block chevy. Which soap and what might be causing the crud in my radiator? Thanks for any help, Mel Link to comment Share on other sites More sharing options...
Truck99 Posted December 7, 2006 Report Share Posted December 7, 2006 The recommendation made by Brad Hudak a while back was to use one of the small boxes of Cascade dish soap in the cooling system - the granular kind. We did it and noticed a big difference in the visible crud and cooling ability of the system. Put the soap in the radiator, run for several minutes with the cap off, then flush the system well. Link to comment Share on other sites More sharing options...
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