Bar's Leaks Head Gasket Fix is compatible with all types of antifreeze!! The easiest solution to stop head gasket coolant leaks. Patent pending formulation contains a combination of sealing liquid and varous size gasket sealing particles which penetrate gaps and cracks to permanently stop leaks.
FUNCTION - Repairs Blown Head Gaskets & Cracked Heads
DOSAGE - 1 to 1.5 gallons cooling capacity use ½ bottle. 1.5 gallon to 4 gallon cooling capacity use 1 bottle. Larger systems use 1 bottle for every 4 gallons of coolant capacity.
Bar's Leaks Block Seal Head Gasket Fix product is the easiest solution to stop head gasket coolant leaks. No draining of the cooling system is required. Patent pending formulation contains a combination of antifreeze compatible sodium silicate sealing liquid and various size gasket sealing particles which penetrate gaps & cracks and harden to permanently stop leaks. This seals because of the extreme heat inside the combustion chamber (5000°F) that works as a catalyst to permanently harden the material to make it stronger than the actual head gasket itself. Use on ALL water cooled gasoline and diesel engines. Heavy duty formula works on aluminum and cast iron heads & blocks, along with sealing all other engine cooling system leaks better than a traditional stop leak. This includes repairing head gaskets, cylinder heads, intake gaskets, cracked blocks and freeze plugs. Use with ALL types of antifreeze including conventional green or blue (Silicate-Based) and extended life red/orange or yellow (OAT/HOAT) coolant.