Quote:
Originally Posted by Chooch84
Volvo Coolant 31439721 is Ethylene Glycol based after doing some digging. I'm using "Motul INUGEL EXPERT Car Antifreeze / Coolant" (the blue one).
My only comment about tap water would be, that whether you live in a hard water or soft water area, you will still have some sort of mineral deposits build up (check your kettle). Distilled water or ready mix would be the ideal way to go IMO.
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My kettle ( North of Glasgow ) is as clean as a whistle ! if not cleaner
Our water is super soft