Castrol 5W-40 engine oil pot is mainly in English, because this kind of engine oil is imported, not made in China. Castrol oil drums are only in English, and there is no Chinese label. This oil is suitable for many different brands of cars, so it must be marked in English.

If you want to buy domestic Castrol engine oil, you can go to a regular lubricant store or supermarket. You can see that Castrol engine oil is marked on the pot in Chinese. There is a difference between domestic engine oil and imported engine oil, and you can choose according to your own needs.