Zero pressure cooling system

[Hammerhead]

The acidity of coolant & cavitation causes static electricity, just like walking across carpet in sock feet, it just happens. Even with pressurized systems it still happens, supposedly less so than pressureless systwms, but by how much I don't know.
Running a zero pressure system, just be diligent about the chemical makeup of your coolant and you can safely manage it. The more heat you produce, the more attention required. This is too much BS for fleets and most truck owners, hence pressurized systems, more foolproof.
I've thought about switching to zero pressure now that I'm MM'd because my truck runs significantly cooler, but prior, NFW.