EVANS becomes acidic when more water than what is recommended is in a cooling system for diesel that's 3%.Unless it is a high mineral added system for wet sleeve diesels like the above shown coolant “filter”. Many of the minerals that have to be added to stop local point heating, some people still use and that makes it conducive. Imo a mistake to use those additives and the evans. But some engine warranties mandate the tablet filters, especially heavy equipment. If it were me using evans and a new truck requiring I would do the garden hose flush to wear out the tablet before it went on.
Evans is like 80-90% polypropylene glycol and no water. It in itself isn’t electrically conductive but can become so with additives. Thermally conductive and electrically rates are 2 different items, but never far off- one of wideman frantz law iirc.
It’s kinda like water: pure H2O does not conduct electricity- all the stuff floating in it does. Thats a part of how distilled water helps in cooling systems. Keep the Evans pure and keep your radiator and heater core electrically isolated and you have no problems.
No-Rosion is an interesting product to use with water here is an article that adds to my confusion with claims that tap water can be used. https://www.streetmusclemag.com/tech-stories/fuel-cooling-ignition-tech/antifreeze-chemistry/