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二十年米,世界各国铁路牵引动力已经或正在由蒸汽牵引过渡至內燃与电力牵引。內燃牵引需要大量的优质柴油机油。近年来,內燃机车增加速度很快,柴油机油的用量也越来越大。据统计:美苏內燃机车消耗的燃料费约为机车运营费的50-60％,柴油机油的消耗量约占燃料费的10-15％。美国一级铁路消耗的燃料费用和润滑费用约为全部材料购置费的27％,1966年购买的新柴油机油约15万吨。苏联1964年机车柴油机油的消耗量约10万吨以上。同时,世界各国內燃机车使用的柴油机油
Twenty years, the traction power of railways in various countries of the world has been or is being transitioned from steam traction to internal combustion and electric traction. Internal combustion traction requires a large amount of high quality diesel oil. In recent years, diesel locomotive increased rapidly, the amount of diesel oil is also growing. Statistics show that the cost of fuel consumed by the US-Soviet diesel locomotives is about 50-60% of that of the locomotives and the consumption of diesel oil accounts for about 10-15% of the fuel costs. The fuel cost and lubrication cost consumed by the U.S. Class I railways was about 27% of the purchase cost of all materials, and about 150,000 tons of new diesel oil was purchased in 1966. The Soviet Union in 1964 locomotive diesel oil consumption of about 100,000 tons or more. In the meantime, diesel engine oil used in diesel locomotives in various countries in the world