MOTUL RADIATOR STOP LEAK is designed to be used in all types of Gasoline and Diesel engines, naturally aspirated or turbocharged, with or without catalytic converter, using all kind of fuel. 

MOTUL RADIATOR STOP LEAK effectively seals critical micro cracks and small leaks. Works quickly and easily in all liquid cooled, closed cooling systems. 

MOTUL RADIATOR STOP LEAK is applicable to seal water coolers and heat exchangers, leaking water pumps, valves, loose connections and cracked coolant hoses without clogging the cooling system. 
Recommended for use in passenger cars, commercial vehicles…etc. and industrial heat exchangers.

Can be used in a curative mode or in preventive mode use as well. 
Compatible with all types of coolants (inorganic, hybrid, lowbrid & OAT). 
Provides a perfect lubrication during sealing process of the coolant circuit.

MOTUL RADIATOR STOP LEAK, added to engine cooling circuit, allows to:

• Seals critical micro cracks and small leaks without clogging the cooling system
• Improves the performance of valves, thermostats and water pumps 
• Decreases engine temperature

 

How to use?

Check coolant level.
Add MOTUL RADIATOR STOP LEAK to warm coolant in the cooling system.
Move all heater controls to “hot” position.
Let the engine idle for approx. 10 minutes.
Check again the coolant level and test if the sealing was successful. 
Attention: Open radiator filling cap slowly and successively - system under pressure - risk of burning! 300 ml is sufficient for cooling systems of 12 L capacity.
Do not exceed the recommended proportion.

Refer to the MSDS sheet and the information mentioned on the product label.