MILLERS EXTRA COOL Concentrate multi-metal corrosion inhibitor and coolant enhancer. Dilute with water in the ratio 1 part Extra Cool to 50 parts water (2% solution) for corrosion inhibition of vehicle cooling systems and deposit reduction. Does not provide antifreeze protection. Note: Antifreeze is often based on ethylene or propylene glycol, which are insoluble in oil. Internal coolant leaks may cause damage to highly stressed bearings. Proven on Civic Cup race cars to reduce coolant temperatures by 5°C.
