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随着环保法规的日益严格和汽车工业的技术进步,国外柴油机油近十几年来发展迅速,在美国使用了32年的 CD 柴油机油已经废止,1994年CF4占美国柴油机油用量的85%,但目前 CF4亦已逐步淘汰,大部分车辆正在使用适用于低硫柴油的 CG4柴油机油,并在全美推广 CH4柴油机油。本文描述了美国柴油机油规格发展的现状、原因及评价方法,指出 Sofim 柴油机油升级换代是技术进步的必然结果,随着汽车排放和节能要求的提高、发动机技术的进步,油品的升级换代仍将是应当同步研究的课题。
With the increasingly stringent environmental regulations and technological advances in the automotive industry, foreign diesel oil has developed rapidly in recent decades. The CD diesel engine oil used in the United States for 32 years has been abolished. CF4 accounted for 85% of the total diesel oil used in the United States in 1994 Currently CF4 has also been phased out, most vehicles are using CG4 diesel engine oil suitable for low sulfur diesel, and the United States to promote CH4 diesel engine oil. This paper describes the status quo, causes and evaluation methods of the development of diesel oil specifications in the United States. It points out that the upgrading of the Sofim diesel oil is the inevitable result of technological progress. With the improvement of automobile emission and energy saving requirements, the advancement of engine technology, the upgrading of oil products Will be the subject of simultaneous research.