If you're thinking of a road trip, don't forget to give your car a spring maintenance to improve power and safety, as well as fuel economy. For car maintenance, changing the engine oil is one of the most important, so how should we choose the engine oil in the spring?
We know that after a period of use, the quality of the oil itself will decline, and the lubricating performance and heat dissipation effect of the oil will gradually decay, thereby reducing the protective effect on the engine. Changing the oil on time and choosing the right quality oil is very important to extend the life of the engine. In the face of the relevant information on the oil drum, what information is worth referring to when choosing engine oil?
First of all, the oil selection depends on the oil viscosity grade marked on the barrel body, which is generally represented by "XW-XX", such as 0W-20, 0W-30, 5W-30, 5W-40, 10W-40 and so on. The number in front of the "W" here represents the low temperature index of the engine oil, the smaller the number in front of the oil, the better the fluidity of the engine oil in the low temperature environment; the number behind the "W" represents the high temperature index, the larger the number, the higher the viscosity, the more stable the oil film in the high temperature environment, and the better the protection performance of the engine.
Therefore, it is important to choose an oil that can maintain proper flow in the local environment in the spring. The temperature difference between the north and south of the mainland is large, and the temperature in some areas is as high as more than 30 degrees Celsius, so you can use 5W or 10W engine oil, and some areas are still in a low temperature state below zero degrees Celsius, so it is more safe to choose 0W or 5W engine oil. The specific model can also refer to the content of the car maintenance manual, unless the old vehicle or the model of the overhauled engine, it is not recommended to increase or change the oil viscosity without authorization, as long as you choose the oil that matches your car, the car can ship its best performance.
Tips: The fully synthetic engine oil has stable performance, good thermal stability, oxidation resistance and cleaning performance, especially the high and low temperature performance indicators are good, and can be replaced in one year or 10,000 kilometers in good vehicle conditions and road conditions. Therefore, for vehicles that use fully synthetic engine oil for maintenance, or vehicles that only change the engine oil once a year, it is recommended to give preference to the engine oil with a smaller number in front of the W letter to adapt to the temperature difference in different seasons.