Zero pressure cooling system

[Magard]

I didn't know if it was cavitation or electrolysis. But I see Rawze's running a zero pressure system on his truck. I know he runs regular coolant after the waterless coolant trouble. I've done it in the past but on cooler running systems and less hp also. Even if my gauge says my temps are good I could still be getting cavitation on the liners and not know it right. Is there any way of doing this safely with say a 585 milk money in a Volvo.