EVANS Coolant

Has any one heard of this coolant? It seems to be the ultimate; a non aqueous coolant that lasts forever. All of the reasons that Evans says that it is the best seem to make sence, but I'd like to hear from someone who has used it in a Chevy engine, or if any one knows what chevy thinks about it. It is also supposed to be able to run zero pressure which would be great if one were to spring a leak because it would only be dripping rather than spraying. I would also like to find out how one would go about making a zero pressure system, but still sealing it from the atmosphere where it may draw water into the system.

Oh yeah, here's the web site: evanscooling.com
check it out.