MANNOL Radiator Flush 9965

Product Features & Benefits

An advanced cooling system flush designed to eliminate rust, scale, and antifreeze breakdown residues while restoring optimal heat transfer and radiator efficiency.

• Deep system cleaning: Removes rust, scale, lime deposits, grease, and decomposed antifreeze residues from the engine block jacket, radiator core, heater matrix, and hoses.
• Restores heat transfer: Improves cooling system thermal exchange and boosts radiator efficiency by 50–70% by unblocking restricted fluid passages.
• Prevents localized overheating: Eliminates hot spots on cylinder walls caused by scale accumulation, protecting the piston group from premature wear, scuffing, and seizure.
• Material compatibility & safety: Formulated completely acid-free; absolutely neutral to all structural metals, metal alloys, rubber hoses, and plastic components while safeguarding water pump seals.
• Corrosion inhibition: Neutralizes aggressive acids and protects internal components against future corrosive degradation.

Directions for Use

1. Pour the bottle contents directly into the cooling system, turn on the cabin heater, and start the engine at idle speed.
2. Allow the engine to warm up to operating temperature and run for 10 to 30 minutes, depending on the severity of contamination.
3. Drain the old cooling fluid completely and flush the system thoroughly with clean water.
4. Refill the cooling system with fresh coolant according to vehicle manufacturer specifications.