Evans Waterless Coolant

[Rhsxo]

I was wondering if anyone on the forum uses this in their DeLoreans and if in fact what the manufacturer claims is true. Apparently you never have to change your water coolant again (unless you spring a leak), you can get better gas mileage and possibly even open your radiator cap when at operating temp. Thoughts and opinions?

Here is the video of the marketing guy talking about it on Jay Leno's Garage

http://www.jaylenosgarage.com/extras/car-care/waterless-engine-coolant/

[stevedmc]

Gee, we just discussed this on another thread. Is there an infomercial on TV trying to sell this stuff or something?

The short answer is no, don't believe the hype. You car is 30 years old as it is. Expecting to go another 30 years without changing coolant is just asking for a nightmare.

http://dmctalk.org/showthread.php?2683-I-ve-waited-long-enough-coolant-flush-process-begins-today

[Farrar]

The numbers look very similar to ethylene glycol, which has been around since the 1920s and marketed as a "permanent antifreeze" for quite some time. Not quite the same, though. Perhaps this is a mix of ethylene glycol and propylene glycol. You could do that yourself if you wanted.

In my opinion, there's no such thing as "permanent" antifreeze -- you will eventually have to open the system to change the radiator cap, or a hose, or your water pump ...

Farrar

[Nicholas R]

Lol, I'm sorry but how exactly can the coolant you use greatly affect your gas mileage. Yea yea I know that different solutions can cause slightly different thermal exchange rates but really?? I'm supposed to believe that the effect is going to be so great that it'll actually be noticeable? Give me a break.

[nofear365]

http://russelldavies.typepad.com/planning/russ_bottle.jpg

[David T]

I have my doubts too. As Carl Sagan once said "Extraordinary claims require extraordinary proof". Also just because it can work does not mean everyone should use it. Cost is also a factor. I give Jay Leno a LOT of credibility but I am still skeptical. There is that tiny bit of doubt that he is endorsing a product and being compensated for it so of course he will say good things about it. He is, after all, a celebrity in the entertainment business and this is how he earns a living. And he has endorsed other products for money.
David Teitelbaum

[DMC5180]

Lol, I'm sorry but how exactly can the coolant you use greatly affect your gas mileage. Yea yea I know that different solutions can cause slightly different thermal exchange rates but really?? I'm supposed to believe that the effect is going to be so great that it'll actually be noticeable? Give me a break.

The theory is the same as going from a 180℉ Thermostat to a 195℉. The engine is more efficient at higher operating temps. Greater efficiency=improved fuel milage(theoretically)

So Imagine a normal operating temp of 245℉ (remember water boils at 212℉ at Sea level, thus the need for a pressure cap to keep it from boiling). A Waterless coolant with 350℉ or higher boiling point can run at 245℉ with plenty of margin. I don't have a issue with using it in a CLEAN system. But our "in use" system is "contaminated". One place that would be very difficult to drain dry is the heater core without removing it. Contamination defeats the benefits of the product claims. Unless the water Boils off and burps itself out of the system in the header tank.

My fear is what would be the effects of running OUR 1981 engine with steel cylinder sleeves and piston clearances designed for 180-200℉ nominal operation. Many of todays modern engine designs uses Nitride coatings on aluminum cylinder bores.

[Nicholas R]

Though I agree that engine efficiency plays a role, I would bet the effect is pretty negligible. By that theory there should also be some radiator, radiator fan, otterstat, and thermostat combination that should yield the optimal gas mileage. In addition the time of year, location, and temperature should play a role. Personally I've run with 2 and 3 core radiators, High and low temp otterstats, and stock and Toby's high performance fans, (never changed thermostat) in ohio, NC, Florida, and more, and never noticed a change in fuel mileage and I check it at every fill up. I highly doubt that changing my coolant is the key element that I've been missing all this time.

[David T]

Drive a car with no thermostat that never warms up and see what kind of gas mileage you get. Temperature can have a large effect on the operation of the motor, it runs based on the Laws of Thermodynamics. The very short version is the hotter you can run (the bigger delta T) the more efficient you can be. The problem with running hotter is a materials problem. Too hot and things start getting weak and soft. Water Wetter (an additive for coolant) is supposed to reduce the surface tension of water making it more efficient at heat transfer. The theory is if you make more power you make more heat and to keep things from overheating you improve heat transfer. Everything is an engineering compromise. Messing with just one thing rarely gets you very much. Sticking in a higher temperature thermostat (or a magic fluid for coolant) is not going to get you very much if anything. Many of today's modern coolants are mainly to extend the service interval and play nice with all of the different metals and other materials in the coolant system to prevent electrolysis.
David Teitelbaum

[stevedmc]

I'm going to replace my coolant with gasoline. That should make it run hotter and more efficient. :dead:

[sean]

I'm going to replace my coolant with gasoline. That should make it run hotter and more efficient. :dead:

Youtube it please:tongue2:

[nofear365]

Youtube it please:tongue2:

+1 please!

[stevedmc]

Youtube it please:tongue2:

Should I wear my green pimp suit?

[sean]

Should I wear my green pimp suit?

I think you should invest in a metallic red and orange one to honor the situation.


EDIT:

Maybe one of these to be safe though:
http://www.vegas-blvd.com/zrxoa/fireSuit3.jpg

[dvonk]

make sure the tag says 'flame retardant.' :flamed: