I Googled this and there were dire warnings. But is it damaging to an engine to run without one? It would seem to me it would be more free-flowing and cool the water quicker without one. At this time I am not sure what temp I have in mine. I am trying to anticipate issues for the trip to KC.

Ron, The Computer Greek
I love therefore I am.
1954 3100 Chevy truck
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2017 Buick Encore
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1960 MGA Roadster Sold 7/18/2017