PETRONAS Tutela Coolant LL-H is a premium performance concentrated Long-Life Coolant delivering optimized performance and component durability for vehicle cooling systems. Formulated with Mono-Ethylene Glycol enhanced with special Phosphate enhanced Organic Technology corrosion inhibitors (P-OAT), free of nitrites, silicates, borate and amines. It provides excellent protection against overheating, frost and corrosion.