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Wrong Coolant can destroy your engine!
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Automobiles are designed to use coolants with VERY specific chemical compositions. These mixtures are designed to prohibit reactions between the various metal alloys and the materials which comprise the gaskets. Automotive engines are composed of dissimilar metals, filled with liquids which conduct electricity, then the very structure of the engine is used as an electrical conductor. The wrong combination of chemicals in the presence of electricity can cause an electrolytic reaction which can dissolve not only the head gasket, but quite literally dissolve the engine itself. We often see German automobiles come into the shop with the aluminum radiators leaking at the joints, when examined we discover that the radiators structure is so compromised that it will disintegrate as it is removed. Nine times out of ten, the cars owner has had the coolant changed yearly at thier local service station and thought they were maintaining the vehicle properly, in fact they may as well have been pouring acid in the engine.
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Add to the chemical reaction taking place, bad engine and transmission ground straps, poor electrical connections and the increased resistance of worn out ignition systems can accellerate the electrolisis. As anyone whom has owned a boat knows, metals, electricity and water can eat metal so quickly that large pieces of Zink are actually bolted to the metal parts of boats, known as "sacrificial annodes", these zincs dissolve before the other metal is effected and must be replaced anually...In your engine, it is the cylinder heads which are dissolving.
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 This head was removed from a Volvo engine mounted in a 1954 Sunbeam Alpine Electrolisis had eaten the water passages until they leaked into the combustion chambers and locked the engine solid. |
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Mercedes makes it's own coolant, BMW, VW and Porsche can all use PENTOSIN brand German coolants. PENTOSIN manufactures several different mixtures each meeting the chemical requirements of specific engines, built at specific times. Carefully read your owners manual to choose the proper coolant for your vehicle or simply have the coolant changed during your next service and the proper coolant used. Failure to maintain the vehicle will result in catastrophic engine failure. |
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