Blue Devil Engine and Cooling Sealant will also work on internal gasket leaks, where small amounts of coolant seep into the engine oil. 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 cars, trucks, vans and SUV's with gasoline or diesel engines. Independent laboratory tests and confirm Blue Devil is the only sealer known
to form
a permanent seal and does not rely on particles, temporarily plugging leaks. Permanently Seals: Blown Head Gaskets, Leaking Radiators, Warped &
Cracked Heads, Leaking Heater Cores, Engine Block Leaks, Leaking Freeze Plugs. White Shepherd FAQ's: Q:How does it work?A:Blue Devil reacts
to a temperature differential at the leak point and that acts as
a catalyst which allows the chemicals
to form
a permanent seal. Q:What does blue devil
fix? A: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. Q:Do I need
to flush the cooling system? A:YES. Remove the bottom radiator hose and flush the radiator and cooling system using
a flushing agent. The radiator must be free-flowing and unrestricted. Q:Is it safe
to use blue devil in my vehicle? A: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 solids or particles that plug up leaks or radiator cores. Q:How much product do I need? A:Use 1/2 quart for
a 3 gallon cooling capacity, 1 quart for up
to a 4.5 gallon cooling capacity, 1-1/2 quarts for 6 gallon cooling capacity, and 2 quarts for up
to a 7.5 gallon cooling capacity. Q:How long will the repair last?A:Blue Devil is
a permanent repair. Q:My thermostat is hard
to reach. Do I really have
to remove it? A:YES. We recommend that Blue Devil be applied
to a free flowing system. Q:Are there any applications where blue devil will not be effective? A:Blue Devil should not be used
to seal seam leaks in radiators or heater cores. Q:What are the telltale signs of
a worn or leaking head gasket? ?
A rough-idling engine with large amounts of vapor coming from the tail pipe. ? Loss of coolant without an external leak and carbon deposits inside the tailpipe. ? Bubbles in the radiator. Q:Does blue devil work on plastic heater cores? A:YES. It is suitable
to repair all types of leaks in all types of cores. Q:My freeze plugs are the soft type. Will it work on them? A:YES. Blue Devil will permanently seal leaks in all types of freeze plugs. Q:Will Blue Devil work on aluminum engines? A:YES. Blue Devil will bond
to all metal types ? aluminum, steel, cast iron, even on plastic cores
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