Motul Radiator Stop Leak Cooling System Additive (300ml)

Motul Radiator Stop Leak is a high-performance additive designed to quickly seal minor leaks and hairline cracks in your radiator and cooling system. Compatible with all types of antifreeze and coolant both organic and inorganic. It works effectively with water-cooled engines in passenger cars, SUVs, and commercial vehicles. This treatment helps avoid expensive repairs, reduces coolant loss, and prevents overheating caused by leaks.

• ✅ Seals minor leaks in radiators, hoses, and joints within minutes
• ✅ Compatible with all coolant types: organic, inorganic, and hybrid
• ✅ Prevents engine overheating due to coolant loss
• ✅ Lubricates the water pump and protects the cooling system
• ✅ Ideal for preventive maintenance or emergency use

🛠️ How to Use

1. Shake the bottle well before use.
2. Pour the entire 300ml bottle into the radiator or coolant reservoir (engine cold).
3. Start the engine and let it idle with the heater on for at least 10 minutes.
4. Check for leaks after the treatment is complete. If necessary, top up with coolant.
5. One bottle treats cooling systems up to 10L capacity.

Whether you're patching a minor leak or taking preventive action before a road trip, Motul Radiator Stop Leak is a quick, effective fix for your vehicle’s cooling system. Made in France and trusted worldwide for performance and reliability.