Radiator Coolant

[Richard]

What about Evans NPG coolant? Their website, http://evanscooling.com/main22.htm claims it as a cure-all for all ills including overheating since it boils at 190°C. It is a non-aqueous propylene glycol coolant, apparently non-corrosive and non-toxic. I think it is available in the UK, try ebay.
Anyone used it or have experience with it?

Richard

[Bellerophon]

For what it is worth, Jaguar Cars used Barrs Leaks from new on all there XK
six cylinder engines as standard.
Also, Borax type antifreeze was made to a BS spec. type C which was only
used by the Army, we tended to use the old Bluecol type A, but this would cause
the engine to run hotter in the warm weather.

The modern antifreezes which are standard in all new cars produced are to a
higher performance and should cover all applications with no problems.

My regards,
Bellerophon