German cars generally have high internal working pressure, high temperature and high requirements for lubricating oil, so it is recommended to use engine oil that meets ACEA standards, and the words ACEA will be marked on the outer packaging of general oil drums.

American cars are similar to Japanese cars, and they are suitable for using low viscosity engine oil, with viscosities of 5W30, 5W40 and 0W40. Oil with ACEA A3/B4, A5/B5 or ILSAC GF-5 grades printed on the package is also suitable for American cars. If it is a general-purpose model, you can look for the logo of "dexos", which is also a low-viscosity engine oil. It has passed the American General dexos certification, which is undoubtedly very suitable for general-purpose models.

As for Japanese and Korean cars, the engine design is more precise, and the requirements for engine oil are not as strict as those of German cars. Generally, they prefer low viscosity engine oil, which can meet the SM and SN levels of API standards, and the viscosity can be selected as 0W20 or 5W30.