Has anyone ever used this waterless coolant in their Z? I'm thinking about trying it out...

Jay Leno's Garage - Waterless Engine Coolant | Car Care

I know better than to get involved in THIS discussion, ....

Pretty sure it's propylene glycol. You can buy it as such in any auto parts store. Without water the heat transfer properties drop and it doesn't cool as effectively as the typical water blend. Leno's either a dummy or getting paid to BS people. Probably the latter. Leno's a shill.

Here's some text from the Evans web page,which, to me, confirms it's a bunch of crap. Reciting theory over reality. They probably sell molecular modifiers for gasoline for better mileage also. That would be a pretty noisy, power-sucking fan that reduced mileage by 10%.

"Increasing the Operating temperature means the fan does not have to run as much, increasing fuel economy by up to 10%"

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Its not crap. It works. I know a number of racers that run the Evans products. Its also completely unnecessary for a street driven car and most race cars, its expensive, you have to COMPLETELY empty and dry out your entire cooling system before using the stuff, and in some cases you need to upgrade your water pump. I know of one person racing a L6 that uses this and he upgraded to the LD28 water pump. Solved problems he was having with cooling cylinders 5 and 6.

A simpler solution to cooling 5 and 6 on high horsepower L6 engines (300 NA and 350+ turbo) is discussed in this thread on Hybridz:

Head cooling on cylinder #5 - solutions? - L-Series - HybridZ

Edited March 2, 201312 yr by John Coffey

My point was that the claims about saving fuel are crap. I've read the accounts about stopping hot spots and high performance applications. I think this a case where the company is trying to grow sales by adding BS to their sales pitch. Diminishing the reputation of the company and product in the process. Not uncommon in the business world. It's sad to see.

Edit - and I think that propylene glycol antifreeze will probably do the same for less money. Just one of those situations where if you don't have patent protection, people can find ways to get the benefits of your work for cheap. Too bad for Evans Cooling.

Edited March 2, 201312 yr by Zed Head

Thanks for the feedback. I think I'll pass on the waterless coolant. I had recently seen it on an episode of Wheeler Dealers where they put it in a TR6 claiming that its higher boiling point would help prevent overheating.

In a car I had 30 years ago, a 71 240Z, I used 100% ordinary antifreeze, no water at all. I came up with the theory that since water causes corrosion I could eliminate corrosion in the engine by not using water. The decision was not based on any study I did nor on a recommendation by anyone knowledgeable. I never had a problem with it in the several years I drove the car with just antifreeze though I kept my eye on the temperature gauge looking for signs of overheating. I lived in the Midwest and in California running the car like that. There are hotter places to live. I still have no idea if using no water and just standard antifreeze has any merit whatsoever from any standpoint and anyone trying it would have to proceed at their own risk. Obviously this post should not be construed as any kind of recommendation at all.

Edited March 3, 201312 yr by Mikes Z car
disclaimer

Evans does not post an MSDS on their website but will supply one upon request. Someone has and then posted it at:

http://contrails.free.fr/temp/NPG+_MSDS.PDF

It lists components as 66-70% Ethelene Glycol, <2% Corrosion Inhibitor, and the balance made up of Propylene Glycol and water. In another section of the MSDS it lists Ethelene Glycol at >= 69%. In the Leno video, the Evans rep said you must keep the water content below 3%. From all given, I would assume the make up would be 70% Ethelene Glycol, 28% Propylene Glycol, and the balance corrosion inhibitor and water that slipped by accident.

Evans does not post an MSDS on their website but will supply one upon request. Someone has and then posted it at:

http://contrails.free.fr/temp/NPG+_MSDS.PDF

It lists components as 66-70% Ethelene Glycol, <2% Corrosion Inhibitor, and the balance made up of Propylene Glycol and water. In another section of the MSDS it lists Ethelene Glycol at >= 69%. In the Leno video, the Evans rep said you must keep the water content below 3%. From all given, I would assume the make up would be 70% Ethelene Glycol, 28% Propylene Glycol, and the balance corrosion inhibitor and water that slipped by accident.

Nice find and great info!

Contrary to some comments above, none of my local autoparts stores carried Propylene Glycol. I am about to install an aluminum radiator and think the additional corrosion protection would be worthwhile since I'm going to be replacing the coolant anyway.

I found the local Tractor Supply store carries Propylene Glycol for use on cattle at $22/gal.

Evans claims to have patent protection for their products, so commercial opportunites may be limited. Again, as others have said, experiment at your own risk.

I saw an episode of "Wheeler Dealers" where Edd China used it in a TR6 that Edd and Mike were fixing up. He looked interesting and was thinking of putting it in the Z.

in theory this stuff should help with pinging - correct ?