Speaking of oil, I'm sure the owners know what it does. As the name suggests, this substance is actually mainly the lubricating oil of the automobile engine, which not only has lubrication, rust prevention, cushioning and other functions, but also can be cooled. It is of great significance for the operation of various components of the engine inside the car. Therefore, in the car, the engine is often called the heart of the car, and the oil is often called the blood of the car. However, on the issue of car blood, there are now very difficult problems to understand. This is because vehicles driving abroad tend to change the oil at a speed of 20,000-30,000 kilometers, and if they are driven in China, many 4S shops mainly require oil replacement when driving 5,000 kilometers. Why is there such a big difference between domestic and foreign?
In fact, the answer to this question is mainly due to the influence of many factors. In addition to the differences in the oil itself, there are certain differences in the driving environment and automobile sales environment at home and abroad. In this case, changing the oil by distance traveled certainly looks normal. First of all, the difference between the oil itself, what many people don't know is that the oil added by many domestic car owners when driving is mineral oil, but it is completely normal for this oil to be replaced with 5000 kg. However, the oil added abroad is often a fully synthetic oil, which can be replaced at one time with 20,000 to 30,000 kilograms.
Regarding the quality of oil, there are also certain differences between domestic and foreign countries. Like the domestic auto oil, the more common standard is API, while the foreign auto oil standard is generally AECA. Especially in Europe, for example, there is almost no domestic API. Relevant information shows that the quality of AECA's oil products is significantly better. Therefore, it is really normal for foreign cars to change oil for 20,000-30,000 kilometers. Secondly, the driving environment of domestic cars is very different from that of foreign countries. For domestic owners, I think everyone has encountered traffic jams on the road. Large cities such as Beijing, Shanghai, Guangzhou, and Shenzhen are not only prone to traffic jams, but also common in third- and fourth-tier cities. In the case of the engine working, the speed cannot be increased, and the life of the engine oil will eventually be shortened!
Except for some international large cities, it is difficult for traffic jams to occur in other areas. Even in a big car country like the United States, only a few big cities get stuck in traffic. In other words, foreign car engines are in better condition when working, and the engines are in good condition for a long time, which also greatly increases the service life of the oil. Regarding this, it is actually easy to understand through simple data comparison. If the average speed of domestic cars is 25 kilometers per hour, then after spending 200 hours, the distance traveled by the car reached 5,000 kilometers. But at the same time, the average speed of foreign cars can reach about 60km/h, and the mileage of foreign cars exceeds 5000 km. Therefore, in a sense, in fact, the driving distance of changing oil at home and abroad is different, the main reason is only that the engine shows different driving distances during the same working time.
In fact, in addition to the quality of engine oil and different operating environments at home and abroad, the automobile sales environment is also one of the main factors affecting oil change. Many owners expressed deep understanding of this. After purchasing a car, many salespeople do not forget to change the oil at the 4S shop after the vehicle has reached a distance of 5,000 kilometers. Many people believe that the reason why 4S shops require car owners to change oil "frequently" is actually to get more profits by shortening the use cycle of oil. What's more, during the oil change process, the relevant staff will sell more services. Sure enough, every time the opportunity for communication increases, so does the opportunity to provide services.
But this is one of the reasons why oil changes are frequent, but it is by no means the main reason. Whether or not oil change is needed, the ultimate initiative is still in the hands of the owner. What's more, there are more and more car repair shops now, no need to go to 4S shops to change oil, you can also go to other places to change oil. So at this point, it's still a bit reluctant. Of course, regarding the actual use of engine oil, it is the best way to decide according to the actual environment you are facing. If when driving, the driving environment is rarely congested, and you do not have the habit of heating the car on the spot, then in the case of using AECA standard oil, it is no problem to extend the driving distance of the oil change.
If the car environment is not good, there is no problem in following the advice of the 4S shop. Especially for beginner owners, strictly following the car repair manual, there is no big problem!