According to the MSDS the Evans coolant is about 70% ethylene glycol (standard
antifreeze) and (presumably) about 28% propylene glycol (supposedly, a more
environmentally friendly and less toxic but arguably less effective
antifreeze), plus the usual lubricants and rust inhibitors. You could,
conceivably, make your own. See:
http://www.rx7club.com/3rd-generation-specific-1993-2002-16/all-you-wanted-know-about-evans-npg-msds-430247/
I like Wheeler Dealers but I think in this case Edd China was flat out shilling
(I think he might be paid or otherwise have a stake in the product the way he
pushed it).
Bob
--------------------------------
Bob Spidell - San Jose, CA
----- Original Message -----
Waterless coolant will result in higher engine temperatures. The heat
transfer at a given delta T is far less than with the usual coolant so
you will end up with a quite higher delta T to effect the same heat
transfer. The main advantage is a considerably higher boiling point. It
is basically 100% anti freeze at a very inflated prize. Normal coolant
is around 50% anti freeze and 50% distilled/de-mineralised water.
Water is hard to beat regarding heat transfer but you need to add anti
freeze for obvious reasons plus A.F. also contains corrosion inhibitors
and lubricating agents to protect the system.
If your engine is overheating there is something wrong with the cooling
system or engine and waterless coolant will not solve this.
Kees Oudesluijs
NL
Op 12-2-2013 16:19, TERRY COLL schreef:
> Saw something called waterless coolant used on a TR6 last night on Wheeler
> Dealers car show. Curious if anyone here has tried it and what the results
> were? Opinions welcomed! Terry Coll '64 BJ8
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