I have a 1999 Dodge truck that has an unusual ??problem?? and I would like to know what the truth is.

I had an issue with the radiator being eaten up. The radiator shop told me that I had an electrolysis issue because of electricity in the radiator. With a volt meter, with one probe in the water, they showed me that there was electricity flowing through the radiator. Replaced the radiator, put on additional ground straps, but still have the same electrical flow. Another shop told me that ALL newer vehicles have this electrical flow. They proceeded to show me on another Dodge truck, a ford truck and a Mercedes that they were all carrying electricity in the water in the radiators. This other shop said that this was because of the “green” antifreeze, but that doesn’t sound right to me.

What’s the story and should I be concerned