For many domestic wage earners, cars are luxury accessories. For example, a house can only enjoy one car in their life. Therefore, many friends are very concerned about the common sense and daily maintenance of automobile maintenance, but they always go against their wishes. The wrong car maintenance methods not only do not make the car new, but also make the car more and more dilapidated. Therefore, we should master the correct knowledge and methods of automobile maintenance It's critical.
Error correction 1: how to wash your car correctly
Many private car owners like to wash their cars in the hot sun. They think that the water on the car body can be dried quickly after washing. In fact, it is wrong. When washing a car in the hot sun, the convex lens effect formed by water droplets will cause local high temperature on the top layer of the car paint. After a long time, the paint will lose its luster. If waxing at this time, it is easy to cause uneven color of the car body. Therefore, car washing and waxing is best carried out under covered conditions. If there is no guarantee, it is better to choose the morning and evening in cloudy or sunny days. The car owner should understand the following correct maintenance knowledge.
Error correction 2: take care of the air conditioner when washing the car
When the weather and temperature rise, the dust increases, and the car body is easy to be dirty, the frequency of car owners' car washing has also begun to rise. Many car owners hope to get as thorough as bathing themselves. But what should be noted here is that we must keep the appearance of the automobile air conditioner dry. If the automobile air conditioner is accidentally wet, the service life of the automobile air conditioner will be affected.
Error correction 3: pay attention to the way of waxing
Many people wax the car body in a circle, which is not the right way. The correct way of waxing is to use a straight line, alternate horizontal and vertical lines, and then make the last pass in the direction of rainwater flow. Only in this way can we achieve the effect of reducing concentric rings on the paint surface.
Correct use of oil
When the oil in the engine oil pan is insufficient, the friction between the bearing and the journal will result in poor lubrication due to the small amount of oil, which will aggravate the wear degree and even cause the shaft burning accident. However, if there is too much oil, the crank handle and connecting rod big end will stir violently when the engine is working, which will not only increase the internal power loss of the engine, but also increase the oil splashed on the cylinder wall, resulting in the oil burning and discharging fault. Therefore, the oil in the engine oil pan should be controlled between the upper and lower marks of the oil dipstick.
Error correction 5: the bolt is too tight and permanent deformation
The tightness of the belt can improve the cooling effect of the engine. Therefore, the tightening of the fan belt is constantly increased, resulting in the excessive tightening of the fan belt. However, it is not right to do so. The fan belt should be kept tight properly, because over tightening will cause excessive bearing load, intensified wear and power consumption, as well as bending of pump shaft, lengthening and deformation of belt and shortening of service life.
Error correction 6: imported tire, not applicable
Some people especially like to emphasize 'import' when buying tires. One of the most fatal defects for domestic users is that they are not applicable. The smooth road surface in Europe is quite different from that of the second ring road and the Third Ring Road in Beijing. It is difficult for the tires suitable for European road conditions to perform well in Beijing. In particular, the impact resistance of the tire sidewall is obviously not suitable. Just like walking on the gravel road with Italian famous brand shoes, it is inevitable that the tire sidewall will bulge. After joint venture production of some foreign brands in China, a layer of cord fabric is added to the side of the tire according to the domestic road conditions, which greatly enhances the impact resistance of the sidewall. The joint venture tire can completely replace the imported products in terms of performance.
Error correction 7: new battery does not charge, shorten life
The first charging of battery is called primary charging, which has great influence on the service life of battery. If the battery is not charged, that is, adding 'water' for direct use, the capacity of the battery is not high and its service life will be shortened; if it is directly charged, the service life will also be shortened. Usually, the initial charging of the battery is after filling the electrolyte, charging with a small current for about 1 hour, which can be installed and used.
Error correction 8: add the equipment in the car at will, affecting the driving safety
Private cars are the mobile home of car owners. It is no fault to pursue comfort and luxury. However, some car owners install various equipment in the car by themselves. If the modification is not handled properly, it will bring adverse effects on the performance of the car and the convenience and reliability of operation, and it is easy to leave sequelae or affect the driving safety.
Error correction 9: cooling water temperature is too low, wear engine
When the weather is hot, some drivers blindly require the cooling water temperature to be as low as possible in order to prevent the engine temperature from being too high; some drivers simply remove the thermostat in order to achieve the purpose of cooling, which are all wrong.
The automobile engine is afraid of both heat and cold. If the cooling water temperature is too low, the fuel combustion will deteriorate, the fuel consumption will increase, the wear will be aggravated, the oil viscosity will increase, and the engine power will be reduced. The test shows that when the cooling water temperature is 40-50 ℃, the engine wear increases by 60-80, the power decreases by 25, and the fuel consumption increases by 8-10. Therefore, the engine cooling water temperature is not the lower the better, generally should be controlled between 80-90 ℃.
Error correction 10: the water tank 'boils' quickly adds water, and the cylinder cracks
When the weather is hot, some drivers will immediately turn off the engine and add water as soon as they see the water tank 'boiling'. This practice is wrong, it is very likely to cause the cylinder head to crack due to sudden cold. If the water tank "boils", the general correct method is: stop the engine immediately, keep the engine idling and continue to dissipate heat; at the same time, open the engine hood to improve the cooling speed. After the cooling water temperature decreases, turn off the engine. At this time, if the amount of cooling water is insufficient, it should be added slowly to prevent the cylinder head from cracking due to sudden cold.
Error correction 11: long term use of vehicles or short distance vehicles, parts damage
Although some people have become car owners, they are not willing to drive at ordinary times. They only drive when they are on holiday. In fact, this way of using cars is very harmful to cars. The surface of transmission parts such as engine and gearbox will rust because it is often in direct contact with air, and the service life of battery will be affected by long-term natural discharge.
The best way is to run every few days for 30 or 40 minutes. In addition, always short distance car will also hurt the car, the car is moving at any time, but can not drive far, is an important reason for injury. The most serious wear and tear occurs between the engine start-up and the stable stage. It takes about 20 minutes to make up for the power consumed by the battery to start the car. This habit of using cars can easily cause the car to break down early.
After reading the above knowledge about car maintenance and daily maintenance methods, do you have a sense of reversal drama? If you find that your common sense and method of maintaining your car is wrong, please correct it and make your car look new again.