Water or Antifreeze ?

[Crankster]

What is the supposed benefit of an engine coolant product that will not boil till 375° F?

The engine will have long been reduced to scrap well over a hundred degrees earlier.

Some sort of stop-leak product was/is often added by OEMs at the factory, and I assumed perhaps wrongly that antifreeze-coolant contained small amounts of stop leak as part of the additive package.

 

[F.M.]

Now THATS an answer. Vwery technical and complete. THANKS 29er

And what was wrong with the answer I posted that it could be a "Special Coupe" ??.

 

[29er]

F.M. : I think he was only referring to the length (36 pages; whew!) of Mr. Weideman's technical article. I don't think it was a comment on your suggestion his may be a Special Coupe.