ROOKS OK-02.0930 is a professional CO₂ test fluid designed for fast and precise detection of combustion gases entering the engine cooling system. The test allows effective diagnosis of a damaged cylinder-head gasket, a cracked cylinder head or a cracked engine block. The fluid provides an immediate colour reaction, enabling the mechanic to quickly confirm system tightness and avoid costly repairs.
ROOKS OK-02.0930 was developed with mechanic safety and convenience in mind. Only a few drops of the fluid are required in the tester chamber to produce an immediate chemical reaction when CO₂ is present. The product is safe for cooling-system components and does not cause corrosion.