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The oil seals represent the most important type of dynamic sealing on rotating shafts. During the last years, we witnessed a great evolution in the technology, starting from their shape to the materials used nowadays.
In conclusion, valve cover gaskets, head gaskets, and spark plugs are essential components in automotive engines, contributing to the efficiency, performance, and reliability of the engine. Understanding the significance of these components and their proper maintenance and replacement is crucial for optimizing the performance and longevity of the engine.