Quote:
Originally Posted by joe plumber
I don't run any in my 53 flathead.When I did it always ran maxed the heat gauge out .Ihave a new radiator and 900 miles on a newly overhauled engine.I believe all one needs is a clean radiator and clean block.Works for me
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Yeah, that's why EVERY internal combustion engine manufacturer in the world puts them in...because they are not needed.
