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Blue Devil Engine &
Cooling Sealant
Blue Devil Engine & Cooling Sealant:
Has the remarkable ability to repair and seal leaks in freeze plugs,
leaking radiators and heater cores, cracked or warped heads, even a
blown head gasket.
Contains no solid or particulate matter. It is non-clogging and will
not harm your engine.
Bonds to metal, aluminum, cast, alloy or plastic.
Is safe and easy to use.
Works on gasoline or diesel engines.
Is a permanent sealer.
DO NOT USE IN NORTHSTAR ENGINES!
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FAQ
What does Blue Devil Fix?
It permanently seals cooling system leaks such as radiators, heater cores
and freeze plugs. It also permanently seals most blown head gaskets, cracked
heads, warped heads and cracked blocks.
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Is it safe to use Blue Devil in my vehicle?
Yes. Blue Devil is safe to use in all water-cooled systems. It is non-clogging
and is 100% chemical. It does not contain any filings or pellets that can
plug up radiators.
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How much product do I use?
Use ½ quart for a 3 gallon cooling capacity, 1 quart for systems holding
between 3 and 4.5 gallons, 1 ½ quarts for cooling systems holding between
4.5 and 6 gallons and 2 quarts for systems holding between 6 and 7.5 gallons.
For larger systems please contact our toll free tech support line. Directions
for use
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Do I need to flush the cooling system?
Yes. Flush the radiator and cooling system with a flushing
agent after, removing the bottom radiator hose. Fflush thoroughly a
second time with water to remove all traces of agent.
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My car is overheating. Will Blue Devil correct this?
No. All cooling related problems must be solved first. Defective fan switch,
fan clutch, clogged or restricted cores, heavy scale and sediment deposits,
or systems jellied from antifreeze must all be properly functioning and capable
of adequately cooling the vehicle.
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How does it work?
Blue Devil reacts to temperature differential created by airflow at the leak
point. That temperature differential is the catalyst for the chemicals in
Blue Devil to react and form its chemical weld.
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I don't want to replace the fan switch if
the head gasket won't be repaired by Blue Devil. Must I make this repair first?
Yes. All cooling problems need to be fixed first. Even if you replace the
gasket these problems need to be addressed.
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How long will the repair last?
Blue Devil PERMANENTLY seals leaks.
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What are the tell tale signs of a worn or leaking head gasket?
• A rough idling engine with large amounts of vapor coming from the period
• Loss of coolant without an external leak and carbon deposits inside
the tailpipe
• Bubbles in the radiator
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Will Blue Devil prevent a gasket from blowing?
No. There are no preventative claims made for the product.
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My freeze plugs are the soft type. Will Blue Devil work on them?
Yes, Blue Devil will seal leaks in all types of freeze plugs.
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My thermostat is hard to reach. Do I really have to remove it?
Yes, Blue Devil must be applied to a free flowing system.
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Does Blue Devil work on plastic heater cores?
Yes, it is suitable to repair all types of leaks in all types of heater cores.
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Are there any applications where Blue Devil will not be effective?
Blue Devil should not be used to seal seam leaks in radiators or heater cores.
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Will Blue Devil work on aluminum engines?
Yes, Blue Devil will bond to all metal types-aluminum, steel, cast iron, even
plastic cores and tanks.
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Will this product knock me out of an engine job?
No, the application should be used for those customers who are unwilling or
don't have the money to spend on a car what would not justify the expense.
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Will you guarantee your product to work?
Blue Devil will work when the diagnosis is correct and it has been used in
accordance with the directions.
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I tried the product and my radiator has
a white crystalline deposit or jell, what is this?
These are telltale signs of a radiator that is in need of service. When fluids
are not changed often enough under severe operating conditions or in areas
with hard water, scale deposits form in the passages of the core. Sometimes
the old fluids will jell or crystallize and can be seen in the system. To
remove these deposits flush cooling system using a flushing agent or a flushing
machine
Not recommended for vehicles with Northstar Engines.
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Can you provide an overview of the cooling system
and how the major components work?
Yes. Please feel free to download the
Cooling System Overview (PDF - 472K) file for summary information
on this topic.
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| 1 |
Cooling
system must be clean and free-flowing before applying
Blue Devil Engine Sealant. |
| 2 |
REMOVE
THERMOSTAT and flush cooling system through
bottom radiator hose using a flushing
agent and then flush through with water. |
| 3 |
Fill cooling
system with water.
Leave enough room for the recommended amount of Blue
Devil.Check recommended dose per cooling
system in the capacity table below.
Cooling
Capacity |
Blue
Devil |
up to 3 gallons |
1/2 quart |
up to 4.5 gallons |
1 quart |
up to 6 gallons |
1 1/2 quarts |
up to 7.5 gallons |
2 quarts |
up to 9 gallons |
2 1/2 quarts |
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| 4 |
ENGINE
MUST BE COLD BEFORE YOU BEGIN. Remove the
radiator cap. Start the engine while cold, then turn the
heater on max. With the engine idling, SLOWLY
pour Blue Devil
into the radiator and let idle with
cap on for 50 minutes. You do not need to flush the
cooling system a second time after process is complete (
Blue Devil can
stay in the system). |
| 5 |
After test drive,
let engine cool before installing new thermostat. Drain
water from cooling system and refill with factory recommended
antifreeze mixture. Check coolant levels periodically and
if engine problems persist, consult a certified mechanic. |
| 6 |
DO
NOT USE IN NORTHSTAR ENGINES! |
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