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Komatsu-genuine DH-1 series engine oil features outstanding levels of wear prevention, high-temperature oxidation stability, piston deposit and soot control based on Komatsufs own stringent specifications with the new addition of the JASO DH-1 standard. As a result, the new engine oil will extend the product life of engines and hydraulic components and reduce mechanical trouble as well as the consumption of engine oil and fuel. Komatsu believes that this new, high-quality oil will help customers reduce their total operating costs and facilitate their environmental conservation efforts.