Prep Fluid is formulated to hygroscopically absorb water whilst flushing loose dirt and scale from the cooling system prior to filling with Hawk Waterless Coolant.

Hawk in association with ASTM committee D15.22 have developed a specific range of standards for waterless engine coolants. All Hawk Coolants are manufactured in accordance with certified ISO procedural standards.

Waterless Engine Flush for all engine types

2 litres