Everyone is talking about where to maintain, what brand and model of engine oil to use, and they are too lazy to go to the insurance of their fourth son. Everyone is talking about communication. Everyone is talking about where to maintain, what brand and model of engine oil to use, and they are too lazy to go to the insurance of their fourth son. Everyone is talking about communication. Generally speaking, it is recommended to use engine oil with engine oil grade 5W-40 or 5W-30. If you drive on urban roads for a long time, it is recommended to choose Shell Oil. Shell engine oil has good self-cleaning performance and can effectively clean the carbon deposits in the engine. If you often run at high speed and long distance, it is recommended to choose Mobil engine oil, which has good high temperature resistance and high stability. If it is in the north, it is recommended to choose Castrol engine oil. Magnetic protection and pole protection can protect the components in the engine 1 well. For example, the maintenance cycle of mineral engine oil, semi-synthetic engine oil engine oil or synthetic engine oil is generally 5,000 kilometers or half a year. For example, the maintenance interval of all synthetic engine oil is 10000 km or 1 year, whichever comes first. Replace the engine oil and oil filter. Check the cleanliness of the air filter and air conditioning filter element, and then decide whether to blow or replace it directly according to the actual situation. For example, 0W20 is suitable for Japanese smooth inner walls, 5W30 is suitable for European and American cars and domestic brands, and 0W40 is suitable for old cars with high viscosity. It is recommended to use oil from Mobil, Castrol, Shell and Total. Other oil filters such as Man Brand, Bosch, Mahler and Leopard King are all very good. If you want to save trouble, you can directly use the original 5-30 total synthesis, and the price is not expensive. Just change it according to the mileage. If you want to use something better, you can use it, such as Extreme Protection, Anceaux Signature Edition, Castrol and Mobil, provided that the oil is faithful and the label is correct. The original factory recommended 5w30. Don't listen to the auto repair shop saying that 0-30 has good liquidity and strong power, just follow the original regulations. Engine oil consists of base oil and additives. When selecting engine oil, we mainly care about two parameters-SAE viscosity grade and API quality grade. These two parameters will be clearly marked on the tank body. The viscosity of common engine oils in the market is classified according to SAE (American Society of Automotive Engineers) standard. The oil tank will be printed with the corresponding oil viscosity value, such as "0W30". "0" before "w" in "0W30" indicates that the low temperature viscosity grade of engine oil is 0, and "30" after "w" indicates that the high temperature viscosity grade of engine oil is 30. SAE specifies the apparent viscosity ranges of 0W, 5W, 10W, 15W and 20W engine oils at -35℃, -30℃,-15℃,-10℃ and -5℃ respectively. The smaller the number before "W", the better the low-temperature fluidity of this oil. At this point, some car owners will ask, is it necessary to use 5W or 0W engine oil when the temperature is below -30℃ in winter? Actually, it's not like this. The low temperature viscosity grade only indicates the fluidity of engine oil at a specific temperature, and has no direct relationship with the environmental temperature of the vehicle. To determine whether the fluidity of engine oil is sufficient at a specific ambient temperature, we should pay attention to another important parameter of engine oil, namely pour point (in degrees Celsius). Pour point is the lowest temperature at which engine oil can flow in a low temperature environment. It is suggested that car owners in the north choose engine oil whose freezing point is about 10℃ lower than the lowest temperature in winter. The main feature of engine oil is that different brands have different engine oil characteristics. Because the raw material ratio of different engine oils is different, its protection focus is also different. Generally, if you are driving on urban roads for a long time, it is recommended to choose Shell engine oil, which has better self-cleaning performance and can effectively clean up the carbon deposits in the engine. If you are driving on a long-distance highway, it is recommended to choose Mobil engine oil, which has better high temperature resistance. The performance and stability of engine oil are good. If it is in the north, especially in winter, it is recommended to choose Castrol engine oil, because the function of magnetic protection can protect engine parts well, especially in winter. Generally speaking, it is better to choose 0W-20 or 5W-30 engine oil. At present, there are many brands of automobile oil on the market. When choosing automobile oil, it is best to choose a reliable brand oil manufacturer. Mobil, Castrol and Anceaux are all very good. During the warranty period, it is recommended to go to the 4S shop for maintenance, and it is enough to use the oil and filter provided by the 4S shop. According to the new regulations of the Ministry of Communications, as long as the maintenance is carried out in a qualified maintenance enterprise, it is enough to have an endorsement and seal on the on-board manual, but there are policies and countermeasures. Otherwise, if the car has quality problems in the future, the 4S shop will find various reasons to refuse compensation! Find a reliable repair shop after the insurance. I hope my answer is helpful to you! @20 19