在毛主席革命路线的指引下,我国工农业生产水平不断提高。内燃机车和船用等大中型增压柴油机的普遍应用,标志着我国内燃机的发展达到了一个新水平。内燃机增压以后,机械负荷和热负荷都大大提高。因此,对内燃机用润滑油的质量要求也越来越高。为了适应这一形势的发展,我国石油工业也在不断增加品种,提高质量。但随着产品质量的提高,当前国 Under the guidance of Chairman Mao’s revolutionary line, the level of industrial and agricultural production in our country has continuously improved. The widespread application of large and medium-sized supercharged diesel engines such as diesel locomotives and marine engines indicates that the development of internal combustion engines in China has reached a new level. After the internal combustion engine is pressurized, the mechanical load and heat load are greatly increased. Therefore, the internal combustion engine lubricating oil quality requirements are getting higher and higher. In order to adapt to the development of this situation, China’s oil industry is also increasing its variety and improving its quality. However, with the improvement of product quality, the current country