Valvoline Cooling system leakage stop

The Valvoline Instant Sealant for cooling systems is fully compatible with all types of antifreeze and coolant. It is suitable for all cooling systems of gasoline and diesel engines and does not have harmful effects on rubber, plastics, alloys, and non-ferrous metals. The Valvoline cooling system leak stop is designed for long-lasting sealing of hairline cracks and leaks, effectively preventing the loss of coolant by sealing hairline cracks in the radiator and stopping seal sweating. It does not clog the cooling channels.

Instructions for use: Unscrew the cap on the radiator, start the engine, and set the heater to the highest setting. Wait until the coolant begins to flow. Shake the bottle and pour the contents into the cooling system of the running engine. Fill the cooling system to the maximum with coolant (Caution: do not overfill) and screw the cap back on. Then let the engine run at idle speed for another 10 minutes or take a test drive. Check the level, ventilation, and tightness of the cooling system after it has cooled down.

Caution: Do not remove the filler cap when the engine is hot!

Recommended dosage: Passenger cars: 1 bottle (300 ml) for a maximum of 10 liters of coolant. Trucks: 2 bottles (2 x 300 ml) for 30 liters of coolant.