The Silkolene Pro Cool is coolant designed for all year round use.Based on propylene glycol for reduced toxicity levelsMaximum frost protection in extreme weather conditionsExcellent anti-corrosion performanceHigh level protection against engine and coolant pump damageProtect system from foaming, scale formation and corrosionThe Silkolene Pro Cool has been based on propylene glycol for reduced toxicity levels, and offers zero lime scale deposits, maximum frost protection in extreme weather conditions and an excellent anti-corrosion performance thanks to a 50% distilled water formula.Anti-cavitation performance exceeds that of conventional ethylene glycol based antifreezes, providing the user with superior protection against engine and coolant pump damage.Please note - Compatible with most alloys, plastics, elastomers and gasket materials used in modern engine cooling system. Ready-to-use no dilution required.1 Litre