I was thinking of adding some of this (or similar product) to my 82 diesel
vanagon coolant.  It would make me feel more comfortable when travelling
around the Rocky mountain foothills around here.  Any comments whether or
not this is a good idea?

WaterWetter� Supercoolant is a unique wetting agent for cooling systems
which reduces coolant temperatures by as much as 30�F. This liquid product
can be used to provide rust and corrosion protection in plain water for
racing engines, which provides much better heat transfer properties than
glycol-based antifreeze. Or it can be added to new or used antifreeze to
improve the heat transfer of ethylene and propylene glycol systems. Designed
for modern aluminum, cast iron, copper, brass, and bronze systems.

http://www.dual-star.com/index2/Service/waterwetter1.htm

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