Changing the engine oil is determined based on the usage of the engine oil. Drop the engine oil on a piece of white paper, and then use the engine oil color change judgment chart to identify the usage of the engine oil. After continuous use, the engine oil will gradually deteriorate and contain impurities.

1. Engine oil replacement
The main function of engine oil is to provide good lubrication for the engine. After reaching the maintenance cycle, the engine oil needs to be replaced for basic maintenance to ensure good performance of the oil and ensure the lubrication effect of the engine. According to the basic maintenance interval of the car, the oil should be changed. The common maintenance intervals for cars are 5000 kilometers or 6 months, 10000 kilometers or 12 months, whichever comes first.
2. Replace the oil filter element
Oil filter element, also known as oil filter, is mainly used to filter impurities in the oil to maintain its performance. After a period of use, the filtration performance will decrease, and at the same time as changing the engine oil, the oil filter element needs to be replaced.
3. Replacement of air filter element, also known as intake filter element
Air filter, abbreviated as air filter, is used to filter the air entering the engine from the engine, including particles, impurities, and moisture in the air. According to the maintenance cycle, timely replacement is necessary to ensure good filtration performance.
4. Replacement of air conditioning filter element
The air conditioning filter is mainly used to filter the air inside the car or the air entering the car from outside (some models also have air conditioning filters outside the car). The relatively pure environment of the air inside the car provides better air quality inside the car.
5. Other inspection and maintenance items
Including various inspection items of the vehicle, oil inspection includes: glass water, antifreeze, brake oil inspection, performance inspection includes: brake performance, battery performance, screw tightening, tire inspection includes: tire pressure inspection, tire wear inspection, Tire balance inspection, light inspection includes: light lighting inspection, high and low beam switching inspection, turn signal lighting inspection, fog light, brake light lighting inspection.