Re[3]: {Chrysler 300} Evans Coolant

I shouldn't reply and piss somebody else off, but it wouldn't be me if I didn't. Dyke has referred folks to the No_Rosion web Site. These guys are chemical experts, most of us aren't. More than 50% of the listserver won't bother to seek out the web site and actually read it. How do I know that? - 'cause we're too too dang busy, lazy, or old and suffering. I actually took the time to read the whole dang site and glad I did.

Distilled water can be used in an AF mix but not straight. It's "electrochemically imbalanced" i.e. will seek electrons from the metal in the cooling system. That makes sense. Reverse Osmosis is the purest DRINKING water on the planet (you don't want to drink distilled H2O). I think, maybe not always, the store bought RO drinking water has CA and MG added back in for taste. Maybe that's still ok, I duuno, but I don't think it's a problem on our cars. I have an under sink RO system, with a mineral filter to add back some minerals for taste Great stuff to drink. And this is on well water - and yes, I use my well water in the cars - because I have it treated with a whole house iron deoxidizer and HE softener. It's a lot better than the hard city tap water - no stains, clean sinks, showers etc. I think it's clean enough for the old cars. The RO system uses a LOT of water to create 5 gallons. I could use it in the cars, it would just take quite awhile to generate enough water, but why? I'm allegedly a guy who actually "enjoys" flushing a cooling system every two years (not really), on cars that at best get 2k miles in that time frame. To my friend John G's point: "this gets ridiculous."

And I'm sure as heck not going to dump polypropylene glycol (PEG) in the cooling system. That's what's used to prep for a colonoscopy. Although, maybe it'll flush out the cooling system too?? What do I know? I do know that that flushing a cooling system is more enjoyable than drinking 4L of polypropylene glycol. Although, drinking 4L of that "stuff" sure as heck beats getting colon cancer! And that's my "no bs" answer.

Carl

P.S. here is what No_Rosion says:

Q. Should I use distilled water as coolant?
A. Yes. But  only  in a 50/50 mix. Distilled water should  not  be used as straight water coolant, because it can cause damage to system metals. The reason has to do with how distilled water is created.
During  the distillation process, water is vaporized into its gaseous phase, so all impurities are left behind. These impurities include a number of minerals, including calcium and magnesium, the two components of hardness. The water is then condensed back into its liquid phase, so the resulting liquid is pure water. In fact, some of the purest water on earth. The problem is that distillation  strips  impurities from water, resulting in water molecules that are electrochemically imbalanced. So distilled water will actually strip electrons from the metals in a cooling system as it attempts to rebalance itself electrochemically. This can result in damage to metals in a cooling system.
Using distilled water in combination with 50% antifreeze effectively cuts the amount of distilled water in half. By compounding with glycol, it will not cause damage to metals in a cooling system. For this reason, it is safe to use distilled water in a 50/50 mix.
Q. What type of water is best to use as straight water coolant?
A.   Reverse osmosis (RO) water. Rather than  stripping  impurities from water, RO filters them through a membrane. The resulting water is electrochemically stable, and not harmful to metals in a cooling system. RO water is every bit as pure as distilled water, but without the risk of electrochemical stripping of electrons from system metals.
Q. Where can I find reverse osmosis (RO) water?
A. At the local supermarket. Look for DRINKING WATER, which is available in gallon bottles. But do not confuse it with SPRING WATER, which is often high in mineral content. We have performed extensive testing of major brands and generic brands of bottled drinking water, and found that it is almost always composed of RO water.

------ Original Message ------

From "John Grady" <jkg@xxxxxxxxxxxxxxxxx>

To "Tom Wilburn" <tomwilburn1@xxxxxxxxx>

Cc "Dyke Ridgley" <ridgleyracing65@xxxxxxxxx>; "Club International Chrysler" <chrysler-300-club-international@xxxxxxxxxxxxxxxx>

Date 9/11/2025 8:57:10 AM

Subject Re: {Chrysler 300} Evans Coolant

look, distilled is the best you can get , condensed H2O steam . All else in the liquid is left behind
What it says on jar gets partisans for no rational reason if you understand what the word
means .
if you want pure H2O get distilled
.
Personally with all the stuff in the block etc I think tap water is just fine; other views are personal opinions , , not science . Can’t argue with opinions, and that is ok , does not make them correct
This gets ridiculous
If its safe to go into your body its safe in your radiator

On the other hand distilled is mandatory in adding water to battery as any harmless ions etc in tap water immediately form compounds and precipitates with acid .

You get things like “ has to be left in moonlight for 2.75 hours on a night less than 67 degrees out or else xxx happens
. I always did that snd xxx never happened. “

On Sep 10, 2025, at 10:43 PM, Tom Wilburn <tomwilburn1@xxxxxxxxx> wrote:

If not distilled- what?
Sent from my iPhone

On Sep 10, 2025, at 9:17 PM, Dyke Ridgley <ridgleyracing65@xxxxxxxxx> wrote:

Jim: Please go to the No-Rosion website and technical questions section and read about which water to use in automobile engines. It is NOT distilled water. All the chemistry is explained there. Like you, I always used to believe and used distilled water until Jay Ross explained why it is not the best form of water. However, if you are happy with your choice, I am fine with it.

Dyke Ridgley

On Wednesday, September 10, 2025 at 7:09:37 PM UTC-5 jd1968ci wrote:
All,
If anyone goes to use ethylene glycol (green) or even the orange Mopar HOAT (embittered) coolant, please do not forget to use DISTILLED water. NO well or municipal water. Distilled is available at every Walmart I've ever been to and is cheap. Distilled is better than deionized because distilled is purified by boiling and condensing the vapors away from the boiling water, which leaves any junk behind in the boiling water. Deionized is pushed through an micropore osmotic filter to separate out salts and minerals.
I've been using distilled water with antifreeze concentrate since 1996 and haven't had any corrosion caused failures.
I just wanted to bring that up because there's been no talk of the water to use in this discussion, and it does make a difference.
Thanks,
Jim Daniel

On Wed, Sep 10, 2025, 4:02 PM 'Bob Jasinski' via Chrysler 300 Club International <chrysler-300-cl...@xxxxxxxxxxxxxxxx> wrote:
Gary,

Full strength propylene glycol is what Evans is. Based on what you’re saying even Evans would eventually need changing due to Glycol degradation. There seems to be no end to opinions on coolant and/or additives. I just want something that works with iron, brass, lead (solder) and aluminum that lasts at least 5 years between changes.

Bob

From: chrysler-300-cl...@xxxxxxxxxxxxxxxx <chrysler-300-cl...@xxxxxxxxxxxxxxxx> On Behalf Of Gary
Sent: Tuesday, September 9, 2025 2:47 PM
To: Bob Jasinski <rpj...@xxxxxxxxxxx>; chrysler-300-cl...@xxxxxxxxxxxxxxxx
Subject: Re: {Chrysler 300} Evans Coolant

Hi Bob and All.

A pressurized automotive cooling system using “propylene glycol” full strength is approximately 370.8°F (188.2°C). 50/50 mix of propylene glycol and distilled water with Pressurized system boiling point: ~250–265°F (121–129°C). Has a Freeze protection: Down to ~-29°F (-34°C). O'Reilly Auto Parts sells Sierra brand full strength propylene glycol for $28 gal. You need to adjust PH occasional with DOWFROST™ pH Booster or similar. Drain every 3 to 5 years. I recommend using a “water Wetter” that aids in cooling.
Even a well-maintained propylene glycol (PG) coolant system with a stable pH of 8.0 to 8.5 will eventually need to be changed. The key reason? Glycol degradation over time, which leads to acid formation, even in closed-loop systems.
Evans could be a smart long-term investment—if you're willing to do the full conversion. Otherwise, a high-quality PG coolant like Sierra or Engine Ice offers excellent safety and performance at
half the cost and effort.

Gary

I’m giving serious thought to changing over to Evans coolant in my G. I’ve read a lot about it and really like that it is a permanent solution to avoid coolant changes, eliminate cooling system corrosion, and reducing system pressure due to its high boiling point of 375 degrees F. I am aware that the conversion requires removal of all the old coolant and that the system has to be purged with a product made for doing that. I’m also aware that Evans is about $50/gallon so the conversion would come close to $300 altogether. Does anyone here have any experience with Evans coolant? I’d like to hear from those that have actually used it, and if you were happy with it or not. If not, what problems did you have?

300ly,
Bob J
Danville, CA

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