Yip..I came to that conclusion..orderedAfter lots of research i'm using Comma G48 and deionised water mix in mine
https://www.commaoil.com/en-gb/prod...nt/xstream-g48-antifreeze-coolant-concentrate
Decent enough value and on BMW's own approved coolant list
According to that Channel 4 docu-drama, there's more than just limescale lumps in the waterWow ..never knew that ..one not far away from me too.
Can’t use tap water in Hampshire ..you can see the lumps of limestone floating in it![]()
