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Engine oil grid, gas grid, air grid, and air-conditioning grid commonly known as the "four grids" of automobiles do not look very big, but they are indispensable in the use of automobiles. Oil cells and gas grids are like the lungs of human beings. They filter out impurities in engine oil and gasoline and make the engine run normally. Air cells and air-conditioning grids are also a filter. Without their filters, even the best cars can't go. How far, no matter how good the air conditioner also has odor. Huang Wole senior technician Lin Weihua reminded the owner that he should pay attention to each “dimension†of the car. When replacing, the most expensive is not necessarily the best.
Oil grid
The role of oil grid: As the name suggests, the function of the oil grid is to filter the engine oil, improve its cleanliness and lubrication, thereby reducing engine wear and make it play the best function.
Working mechanism: like the heart's blood circulation system, the oil in the oil pump is also constantly circulating. In the process, it often produces a lot of unexpected impurities, and such unclean things need oil filter.
Price: domestic economic vehicles, such as Changan Star, Xiali Jinbei, etc., the oil price used is generally between 8 to 15 yuan; mid-range car, the use of oil price between 15 to 35 yuan; in the high-end car, The price range of the matching machine oil grid is generally between 35 and 65 yuan; the price of the oil grid on the rare individual vehicles is about 90 yuan. In addition, the price of sub-machine oil grids is generally 5-10 yuan, which is roughly 1/3 of the factory price. However, the quality of the auxiliary parts is poor, and the apron is easy to be damaged, which easily leads to oil leakage, directly affects the operation of the engine and leads to wear, and is not recommended.
Recommended replacement time: The car should be replaced every 5000-10000 km. Experts recommend replacing the oil grid every time you change the oil. The reason is that the dirt in the old machine oil will reduce the viscosity and cleanliness of the new oil, affect the oil circulation speed, and will also damage the engine.
Gasoline grid
Gasoline grid action: Filter gasoline from the fuel tank to the engine combustion chamber.
Working mechanism: There are various impurities in the general gasoline. The fuel tank will precipitate a certain amount of dirt for a long time. The above reasons will affect the quality of gasoline. The role of the gas grid is to filter the impurities mentioned above. The gas in the fuel tank is filtered through the gas grid to reach the combustion chamber of the engine, and its clean purity can be effectively guaranteed.
Price: Gasoline grid material varies from car to car, most of the economic models of the gasoline grid price is between 50 to 100 yuan, a few special models of gasoline grid price between 100 to 200 yuan. The price of gasoline in the high-end and mid-range cars is more than 100 yuan. The overall difference is not significant. Some deputy plant parts or miscellaneous brand gas grids are prone to oil spills, which may cause spontaneous combustion or even explosions. They are quite dangerous to the body and are not recommended for use.
Recommended replacement time: about 20,000 km per car.
Air grid
Air grid function: Air grid installed in the engine's air intake position, it can effectively filter the dust and impurities in the air, so that the purity of the air entering the combustion chamber is greatly increased, so as to ensure adequate combustion of fuel.
Working mechanism: The air cell consists of a paper filter, which seems to be simple in construction but its function should not be underestimated. Failure of the air grid will result in insufficient combustion of gasoline, insufficient engine power, and contamination of the throttle body, leading to idling instability and abnormal engine shake.
Price: The air price of the general model is between 50 and 100 yuan. The price of the air grid of a few special models, such as Jaguar, Mercedes-Benz and BMW, is more than 100 yuan.
The price of deputy factory parts is generally 1/3~1/4 of the factory price, and at most twenty to thirty yuan.
Recommended replacement time: about 20,000 km per car.
Air conditioning grid
Air conditioning grid function: similar to the air grid, the air conditioning grid's role is to filter the air in the dust particles and other impurities, to provide clean air for automotive air conditioners.
Working mechanism: In addition to a few old models, most of the air conditioners in the new models currently have activated carbon, which greatly improves the air cleaning function. If you do not replace the air conditioning unit for a long time, it will cause serious air intake jams, resulting in low air output, slow cooling, and odor.
Price: Basically in tens of dollars. It is recommended that the owner select an air-conditioned cell with activated charcoal, which is only slightly higher than the air-conditioned cell without activated charcoal.
Recommended replacement time: about 20,000 km per car.
Tips: For you to calculate the amount of these accessories to the 4S shop, although the quality can be guaranteed, but the price is also very high, and the quality of the engine oil and gas grid can not be sloppy, how can we do accessories Good and cheap? Experts suggest that in order to ensure the quality of the purchased parts, the owner can take the time to purchase the regular brand accessories in the professional auto parts market, not necessarily the original parts or imported parts, but it must be a regular brand part, so the purchase, both to ensure the quality, price Also inexpensive. Buy more and put some in your car, replace it yourself, or replace it in a professional car service shop.
Replace the use of matters needing attention 1, gas grid and oil grid replacement after installation, we must pay attention to the sealing of the interface, alert oil leakage phenomenon;
2, for the air grid and air-conditioning grid, to ensure the overall seal after replacement;
3, take care of gasoline, try to use the car manufacturers to specify the matching label gasoline.