Blue Devil Head Gasket Sealer 946ml

BlueDevil head gasket sealant contains no solid or particulate matter and will not clog or harm your engine. It bonds to metal, aluminium, cast, alloy, or plastic, and it’s safe and easy to use.

BlueDevil Head Gasket Sealer is compatible in gasoline and diesel engines. Many people are unsure how to fix a blown gasket but know that Blue Devil's Head Gasket Sealer is the best formula available as it stops leaks permanently.

 Directions:

1. Cooling system must be clean and free flowing before applying BlueDevil Head Gasket Sealer.
2. REMOVE THERMOSTAT and flush cooling system using BlueDevil Radiator Flush (or comparable flushing agent) and then flush with water.
3. Fill cooling system with WATER. Leave enough room for the recommended amount of BlueDevil. (See Table)
4. IMPORTANT: ENGINE MUST BE COLD BEFORE YOU BEGIN. Remove the radiator cap and start the engine while cold, then turn heater to Max.
5. IMPORTANT: POUR SLOWLY! With the engine idling, SLOWLY POUR BlueDevil into the radiator (take 1 minute pour time for entire bottle - 30 seconds for 1/2 bottle). After pouring BlueDevil slowly, let vehicle idle with CAP ON for 50 minutes. You do not need to flush the system a second time after process is complete.
6. Let engine cool before installing new thermostat. Drain enough fluid to refill with compatible antifreeze.