Come on Ash, you know I'm as techie as you
I guess since it's used neat, it will have a higher boiling point ....better cooling qualities ??
99% of soop owners use it, from what I have read and it's not expensive I bet.
For me, cooling is one of my highest priorities when it comes to the car in any area......including me (fecking aircon....grrr )
I have also see the possability that you could rot the water pump vanes away with just water like the MKIII cars.....water promotes rust and would it not leave deposits in the rad just like in your kettle ?
does that help ?