At 10:41 AM 10/6/2007, Jeff Clayman wrote...
>Anbody use this in a vanagon?
>
>http://www.evanscooling.com/catalog/C_npg1.htm
>
>Seems like a good choice as it boils at 300 degrees.  It is a little
>more viscous the PPG aqueous coolant but it doesn't expand.

Note that they don't mention the specific heat capacity of their fluids
(a measure of how much heat the fluid can carry). It's hard to beat
water for that. I suspect you would need the higher boiling point,
since it would have to get hotter to transfer the same amount of heat
as a traditional water/antifreeze mix.