User Manual

Head Gasket Sealer | #38386

BlueDevil Head Gasket Sealer will repair

and seal leaks in blown head gaskets,

warped or cracked heads, heater cores,

and freeze plugs. BlueDevil contains no

solid or particulate matter, and will not

clog or harm your engine. It bonds to

metal, aluminum, cast, alloy, or plastic,

and it’s safe and easy to use. BlueDevil

Head Gasket Sealer is compatible in

gasoline and diesel engines. It stops

leaks permanently.

• Good for Head Gaskets, Warped or

Cracked Heads, Heater Cores and

Freeze Plugs

• Contains no solid or particulate matter

that can harm a vehicles engine

• Alternative solution for costly and time

consuming repairs

• Safe and easy to use, Permanent

Repair

Directions

1. Cooling system must be clean and free owing before applying BlueDevil Engine

Sealer.

2. REMOVE THERMOSTAT and ush cooling system through bottom radiator hose using

BlueDevil Radiator Flush (or comprable ushing agent) and then ush with water.

3. Fill cooling system with WATER. Leave enough room for the recommended amount of

BlueDevil. (See Table Below)

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 ush the system a second time after process is complete (BlueDevil can stay in the

system)

6. After test drive, let engine cool before installing new thermostat. Rell with compatible

anti-freeze.

CAUTION! KEEP OUT OF REACH OF CHILDREN.

AVOID EYE OR SKIN CONTACT. IF EYES OR

SKIN BECOME IRRITATED, RINSE WITH COLD

WATER IMMEDIATELY. IF SWALLOWED, DRINK

LARGE VOLUMES OF WATER. CONSULT A

PHYSICIAN IF DISCOMFORT OCCURS

For additional information regarding the installation of this product or any other general

questions, please visit www.gobluedevil.com or call our support line at 1.888.863.0426