Liqui-Moly Radiator Cleaner (Flush) is a high-performance cleaning concentrate formulated to restore cooling system efficiency by dissolving oil residues, sludge, lime scale, and contamination inside radiators, heater cores, circulation lines, and engine cooling passages. Engineered with modern complexants and active cleaning agents, this flush removes stubborn deposits without harsh chemicals, ensuring a safe and thorough system clean-out. Unlike aggressive cleaners, this formula contains no acids or alkalis, making it safe for all cooling system components including aluminium radiators, rubber hoses, seals, and plastics. It neutralises acidic buildup, promotes stable cooling performance, and is fully compatible with all standard antifreeze and coolant formulations. Perfect for vehicles suffering from overheating, restricted coolant flow, dirty coolant, or system contamination after a blown head gasket, oil intrusion, or mineral scaling.

• Acid- and alkali-free formula safe for all cooling system materials
• Disperses sludge and dissolves internal radiator contamination
• Removes oil, grease, and lime scale deposits effectively
• Neutralises acids to stabilise cooling system operation
• Gentle on rubber hoses, seals, aluminium, and plastic components
• Fully compatible with all antifreeze and coolant types
• Restores coolant flow for improved thermal efficiency
• Ideal for routine maintenance or pre-coolant replacement cleaning