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DANGER: Opening cooling system while engine is hot or running may cause severe burns.
Cooling systems that are dirty or partially clogged should be flushed before usage.

1.Make sure engine is cool so radiator cap can safely be removed.
2.Pour entire tube powder into radiator. One tube treats systems up to 3 gallons.
3.Fill radiator and overflow tank to proper level and reinstall cap.
4.Running motor fast enough to circulate the water. Continue to run motor for 15 minutes until water is hot and leak stops.
5. If leaks continues, a second application may be required. For extra large leaks where water runs out before the powder has time to work, catch the solution and pour back into radiator, repeating the operation until a complete seal is effected.