Shell Mysella S5 N 15w-40 is a high performance quality blend oil blended for the use in highly-rated, 4-stroke, spark-ignition engines which require a 'low ash' oil. It satisfies the new generation of stationary gas engines designed to meet the emerging legislation limiting emissions of NOx, and those which employ the latest 'lean' or 'clean' burn technology. It is also sepecially developed to provide extended drain intervals in those natural gas engines where oil life is a limiting operational factor.
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