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General knowledge of car maintenance

Publication time:2018-09-19 08:46

Xiao Bian believes that the owner can be divided into two types, one is to take the car as a wife, very care; one is to use the car's contemporary step tools, the car is dirty and wash, if it is broken, it can be repaired, and normal maintenance can be said to be almost no. In fact, Xiao Bian believes that these two methods of treating cars are not very good, the car needs maintenance, but also afraid of over-maintenance. Today, Xiaobian has sorted out some misunderstandings of maintenance.
Car wash is like a bath - it is harmful to air conditioning. In the weather, the temperature rises, the dust increases, the body is easy to get dirty, and the frequency of car washing for the owner begins to rise. Many car owners also want to make a thorough bathing as if they were taking a bath. However, it should be noted here that it is necessary to keep the appearance of the car air conditioner dry. If the car air conditioner is accidentally wet, it will affect the life of the car air conditioner.
Imported tires - not applicable. Some people buy tires and particularly like to emphasize "imports." The most fatal flaw in the new tires pushed abroad is that it is not applicable. The smooth road surface in Europe is quite different from the road conditions in Beijing's Second Ring Road and Third Ring Road. The tires suitable for European road conditions are difficult to perform in Beijing. In particular, the impact resistance of the sidewall is obviously not acclimatized, just like wearing Italy. Brand-name leather shoes take the stone road in general, and the sidewalls are inevitable. After the domestic joint venture production of some foreign brand tires, a layer of cord fabric was added to the side of the tire according to the domestic road conditions, which greatly enhanced the impact resistance of the sidewall. The joint venture tires can completely replace the imported goods in terms of performance. .
The new battery is not charging - shortening the life. The first charge of the battery is called the first charge, and the initial charge has a great impact on the battery life. If it is not charged, it will be directly used by adding "water". The capacity of the battery will not be high and the life will be shortened. If it is directly charged, the life will be shortened. Usually, the initial charge of the battery is installed after the filling of the electrolyte, and charging with a small current for about 1 hour.
Waxing in a circle - the effect is poor. Many people wax the body habitually in a circle, which is not the right way. The correct way of waxing is to make the straight line, the horizontal and vertical lines alternate, and then the last one in the direction of rainwater flow, so as to reduce the effect of reducing the concentric circular aura on the painted surface.
Too much oil - failure. When the oil in the engine oil sump is insufficient, the friction between the bearing and the journal will be poorly lubricated due to the small amount of oil, which will aggravate the degree of wear and even cause a burnt shaft accident. However, if there is too much oil, the crankshaft shank and the big end of the connecting rod will produce severe agitation when the engine is working, which not only increases the internal power loss of the engine, but also increases the oil splashed on the cylinder wall and causes the burning oil to malfunction. . Therefore, the oil in the engine oil sump should be controlled between the upper and lower scribe lines of the oil dipstick.
Cooling water temperature is too low - wear engine
In the hot weather, some drivers in order to prevent the engine temperature from being too high, blindly require the cooling water temperature to be as low as possible; some drivers simply remove the thermostat for the purpose of cooling, these practices are wrong.
Automobile engines are both hot and cold. If the temperature of the cooling water is too low, the fuel combustion will deteriorate, the fuel consumption will increase, the wear will be aggravated, the viscosity of the oil will increase, and the engine power will decrease. Tests have shown that when the temperature of the cooling water is 40-50 degrees Celsius, the engine wear increases by 60%-80%, the power is reduced by 25%, and the fuel consumption is increased by 8%-10%. Therefore, the temperature of the engine cooling water is not as low as possible, and should generally be controlled between 80-90 degrees Celsius.