Steel Cylinder Head Gasket Seal-Defective-Easy repair of the bottle.

Steel Seal seals leaking cylinder head gaskets, cracks in engine blocks (cooling circuit) and cracks in the cylinder head (cooling circuit) reliably. This product has been used successfully in the USA for over 15 years and can therefore be used by both professionals and DIY enthusiasts. Can also be put into the cooling system for prevention. Steel Seal can be used in conjunction with any standard anti-freeze products. Steel Seal is simply added to the cooling loop, operate the engine in idle according to the instructions and then let it cool and you're done. (Please note the use instructions on the bottle precisely.) [Cannot guarantee instructions in English.]