Pay attention to three major factors when changing engine oil, including some details. The details are as follows:

1. When should you change engine oil?

If you care about the situation in front of you very much The vehicle is not planned to be replaced within ten years. It is recommended to replace the conventional oil every 5,000 kilometers and the synthetic oil every 5,000-7,000 kilometers. Don't think it's a waste to replace it too early. Compare similar cars five years later. Whether it's power, fuel consumption or maintenance costs, you will see a huge difference. If you are good to the car, the car will be good to you!

2. How to choose engine oil

Generally, when choosing engine oil, you should pay attention to the following four elements:

1. The engine oil should be selected according to the requirements of the engine. There is no need to use too high-grade engine oil on an engine with lower requirements, nor can you use a lower-grade engine oil on an engine with higher requirements.

2. Try to choose multi-grade oil. Multi-grade oil has better protection for the engine due to its saving, long life and high efficiency. Due to the characteristics of multi-grade oil, premature blackening and lower oil pressure than ordinary oil may occur during use, but this is normal.

3. Some domestic engine oils are of good quality and can be used with confidence. There is no need to blindly pursue "foreign oil".

4. If the engine is in good condition and the temperature is low during the season, engine oil with lower viscosity should be used as much as possible to keep the oil circuit smooth. For example, in high-temperature seasons or when the engine is severely worn, choosing high-viscosity engine oil will help form an oil film and reduce engine wear.

3. When winter comes, the viscosity of the engine oil used in summer increases, the fluidity becomes worse, the friction resistance increases, the crankshaft rotation resistance increases, and the piston and cylinder liner wear increases. , it is difficult for the diesel engine to start, affecting the power and fuel economy of construction machinery. Therefore, it is necessary to replace the winter engine oil with good fluidity.

When replacing engine oil, try to use high-quality engine oil. This type of engine oil is not easily oxidized at high temperatures and will not form deposits in the precision parts of the diesel engine, which can greatly extend the life of the diesel engine. On the contrary, if low-quality engine oil is used, it is easy to leave carbon deposits and sludge in the diesel engine, clogging the filter and oil passages, and shortening the life of the diesel engine.

Single-grade engine oil has a narrow operating temperature range, while multi-grade engine oil can work in a wider temperature range. Multi-grade engine oil should be used in winter. In some severe cold areas, special antifreeze engine oil should also be used. When changing the engine oil, the oil filter should be replaced.