As the call for environmental protection is getting higher and higher, government departments in many countries and regions have formulated strict environmental protection regulations, which have a great impact on the design and manufacturing technology of automobile engines, coupled with the requirements for the technological progress of automobile engines themselves. The development of oil specifications is changing with each passing day. The development trend of international engine oil is that the quality requirements of lubricating oil are constantly improving, and the specifications of engine oil are developing rapidly. At present, two other organizations, the AC International Lubricant Standardization and Accreditation Committee, represented by the United States and Japan, and the European Federation of European Automobile Manufacturers have formed in the world, each has formulated test methods for engine oil specifications and requirements, and have different Focus. Such specifications lead the development of global lubricants. Whether they can be unified is the concern of the lubricant industry. Gasoline engine oil The difference between the development of gasoline engine oil in the United States and Europe is mainly driven by the requirements for saving natural resources and protecting the environment. Therefore, the fuel saving performance of automobiles is still an important issue. However, the United States and Europe have adopted different policies in promoting fuel savings. US policy is to set a maximum limit for manufacturers’ average fuel economy, such as fuel consumption for light-duty trucks and passenger and cargo vehicles, with a fine of $50 per vehicle. This approach directly puts pressure on car manufacturers. The fuel saving policy in Europe is to collect fuel consumption tax. For example, the French gasoline tax is 7 for Germany and the United Kingdom is only for the United States. The high consumption tax in the United States directly puts a heavy burden on car owners, and indirectly transmits pressure to car manufacturers. The fuel saving policy has a greater impact on automotive oil pan manufacturers the development of lubricants. Due to different emphasis, different trends have emerged in Europe and the United States. Europe pays more attention to the oil change period, which continues to extend. For example, the recommended oil change period of the German Volkswagen is Qiao side blade new specification. The recommended oil change period is 30. In the United States, due to the emphasis on fuel saving performance, the anti-friction performance of oil products has been continuously improved. The mileage per liter of gasoline in the US car fleet has increased from about 47 to about 47. It can be seen that improving friction reduction is directly related to improving fuel economy. The difference in the development trend of lubricating oil between the United States and Europe has led to differences in the composition of lubricating oil formulations. Table shows the comparison between the composition of engine oil formulations in the United States and Europe. Project Performance Comparison Dispersant Level Detergent Level Qiao Antiwear Agent Level Qiao Antioxidant Level Lu Viscosity index improver shear stability compared to friction improver level compared to another developed a program class test for the fuel economy test of the next generation of gasoline engine oil. The second aging stage is equivalent to driving to evaluate fuel economy and fuel economy durability. Judging from the test results of oil products, fuel economy decreases with the extension of working time, so the other key is fuel economy durability. Similarly, characteristics and fuel economy evaluation methods have also been developed. The fuel economy tested by this method also decreases as the working time increases. Fuel economy durability is also an important aspect of the development of its new specifications. Gasoline engine oil development trends The United States and Japan emphasize fuel economy, while Europe pursues a longer oil change period. It is impossible to let the United States and Japan sacrifice fuel economy and Europe to sacrifice the oil change period. Whether future gasoline engine oil standards will be unified will require further research and consultation. The direct background of the clever development of the latest specifications of gasoline engine oils is better fuel economy, with better fuel economy durability, better emission system protection, better high-temperature deposition protection, and a driving factor is the elimination of leaded gasoline in all trials. And use more new models of engines in the test. Compared with a performance, see the table and specifications of the performance is stricter. The specification improves the smoke control ability, and requires that its dispersing ability must be good, and it has certain requirements for the dispersant and base oil. Otherwise, it cannot meet the performance requirements. Another significant improvement is the addition of evaluation tests for valve train wear. It is the latest diesel oil specification formulated by Europe for the requirements of engines that meet the European emission standards. Its performance and related bench tests are shown in the table. The global standard performance level of diesel engine oil is a starting point for the establishment of a global standard for diesel engine oil. The establishment of a unified global standard for diesel engine oil is currently only possible, and no substantial progress has been made. Conclusion Environmental protection regulations have become the biggest driving force for the development of engine oil. Due to the differences in energy conservation represented by the United States and Japan and represented by Europe, gasoline engine oils cannot achieve global uniform standards. But for all specifications, fuel economy durability is the key to next-generation gasoline engine oil technology. Due to environmental regulations leading to the convergence of diesel engine design, Qiaohe is closer to diesel oil specifications, and it is possible to establish a unified global standard.
