The head gasket is typically found in between the engine block and the cylinder head of most internal combustion engines. The main purpose of having a head gasket on your engine is to seal the cylinders to ensure that maximum compression is achieved. If a worn out gasket is neglected to get replaced, these compression may leak around the worn out gasket. This may cause a variety of problems, from compression loss that leads to power reduction and rough engine operation, to exhaust gases that are forced to enter into the cooling system resulting for the engine to overheat. This may also cause a major increase in engine wear due to the engine oil mixing with the antifreeze coolant of the cooling system. Your Daewoo head gasket usually wears out because of the compression being made inside the cylinder. This can get worse when the cylinder is made from aluminum rather that an iron cylinder head. The aluminum has a much greater thermal expansion rate, which in turn results for a greater deal of stress to be accepted by the head gasket. Engine manufacturers and designers have responded to this problem and made a solution by adding a non-stick coating such as Teflon to the surface of the head gasket. As to this problem not to occur, the Daewoo head gasket offered for different Daewoo models are coated with a Teflon material for extra durability. If you are aware that your head gasket is already worn out, replace it immediately. Always remember that obtain parts from a reputable online store to be rest assured that the replacement Daewoo head gasket is on high quality.