That Con is there for Any coolant change, as altering the chemistry of your coolant system will inevitably change what gets deposited, and what gets picked up and carried around by the coolant. Especially with running flush cleaners like Restore, VC9, etc through. Those things are designed to lift off scale and residue, and yes, you attempt to flush it out as much as possible, but there will always be some left. That's why it's recommended to do your flush on the old oil cooler first, and also to run a coolant filter.Cons: if the Evans will clean and loosen any residue/scale/sand/debris after you already did a flush, you take a chance of clogging up the very small coolant passages in the oil cooler.
Keep an eye on your ECT/EOT delta, it may not happen instantly, but over time. Even if you use a coolant filter, a coolant filter is a bypass system designed to only filter 10% of the coolant at any given time.
Oh, absolutely! Not a problem pointing it out at all :thumb:Dicion, being that Glueballs is a new member, I had to point out a "con" of flushing out the coolant system in order to switch to another coolant. Either way, he needs to monitor his ECT/EOT delta before or after a coolant flush.
No Corrosion (no water!)
No Pressure (no boiling! no water!)
Near ZERO chance of an EGR Failure Ever (because it needs pressure to pop it)
No Oil Cooler Gunk (Either Due to Silicates or To Glyoxal creation, depending on which theory you follow)
Less stress on cooling parts due to less pressure
No chance of a coolant hose/radiator blowout/rupture. Leaks are just drips that can easily be patched with duct tape until you can get to where you need to go.
I will do so! I still need to change my thermostat, I'll pull a sample then and send it out!Dicion;
Once you notice that you are no longer having to add the NPG+ to the degas bottle (and we assume that all the water is now out), would you send a sample out? I am very curious as to how low the water content gets when converting the cooling system in this manner. There is an address in that lengthy Evans Coolant thread. If I recall correctly, the analysis is free and all that is required is about a tablespoon full.
You're forgetting the third part of the reaction. Oxygen. With no water in the system, there is no oxygen if the coolant boils (which it shouldn't do hardly at all compared to normal coolant). You need oxygen to oxidize. No oxygen means no oxidation means no Glyoxal. Granted, there will be a small amount of oxygen exposed in the degas bottle, but according to Evans, even if the coolant boils, it should re-condense back into a liquid in the engine, and not have to make it to the degas bottle. Even so, in a worse case scenario, even if Glyoxal was produced from Evans boiling, and reaching the degas bottle, it would still be Much less produced than standard coolant in the same situation, which would have much more vapor produced, much more oxygen exposure, and much more production of Glyoxal if the theory is correct..Ok, so I'm sitting here and read through that thread about the Glyoxyl and how that byproduct is created.
Correct me if I am wrong, but it is created by high heat, ethylene glycol and copper (or Silver) all coming together.
Since the Evans is a blend of Propylene and Ethylene glycols, could this Glyoxal reaction happen to this coolant as well? You still have the three things necessary for its creation, right? High heat, ethylene glycol and copper.
Actually, it was mostly your counterpoints and questioning of established thoughts on NPG+ in that thread that led me to really want to try it out. As you remember, everyone seemed to have a biased opinion against it with absolutely nothing but heresay and rumor behind it. You were the one who challenged them on it and did the legwork to prove most of it false.I am happy to see that at least someone has used that research and wasn't fearful of all the hype that was thrown about previously.