redline water wetterIf you thought you can’t get wetter than water you’d be wrong – apparently this stuff doubles the wetting ability of plain old H2O, improves heat transfer and even protects against rust and corrosion.

According to US firm, Redline Oils, adding Water Wetter to your cooling system can decrease your engine temperature by up to 20-degrees over normal coolant – that’s not to be sniffed at!

Price £12 (355ML)

For more info see Redline Oil Europe