Waterwetter™ Supercoolant and Rust Inhibitor (Pink) is a unique wetting agent for cooling systems (add to the radiator), which can double the capacity to remove heat by reducing temperatures as much as 20–30°C. An absolute must for reducing the strain of running vehicle air-comditioning on hot days. Suitable for both petrol or diesel vehicles and trucks. Especially recommended for race engines! It also provides year round protection to reduce rust, corrosion and electolysis—passing the most severe Simulated Service Corrosion test developed for automotive coolants determined by the ASTM committee. It also reduces cavitation and air pockets; cleans and lubricates water pump seals; prevents foaming; complexes with hard water to reduce scale. Waterwetter provides much better heat transfer properties than glycol-based antifreeze.