Demineralised water is specially purified water that has had all of its mineral and salt ions removed, such as Calcium, Magnesium, Sodium, Chloride, Sulphate, Nitrate and Bicarbonate.
It is also known as Deionised,
Used with 2x MOTUL MoCool 500ml,
Topping up batteries,
Washing windows to get no water spots,
Used with MOTUL Inugel Expert & Optimal