【The owner's family car knowledge】Now there are more and more private car owners, and everyone hopes that their cars can be driven for a long time to reduce maintenance costs. To do this, you must learn to maintain your car scientifically. However, there are often some problems in car maintenance. Car maintenance experts said that some people thought they were maintaining the car, but in fact they accidentally damaged the car. After reading the following 12 kinds of wrong maintenance methods, you can also check your seat.
1. Wash the car under the scorching sun──damage the paint
principle:Under the scorching sun, the convex lens effect formed by the water droplets of the car wash will cause the uppermost layer of the car paint to produce a local high temperature phenomenon. After a long time, the car paint will lose its luster. If waxing at this time, it is also easy to cause uneven color of the car body.
Correct maintenance method:Car washing and waxing are best done under sheltered conditions. If it is not guaranteed, it is best to choose to do it in the morning and evening when it is cloudy or sunny.
Daily maintenance method:Many private car owners like to wash their cars under the scorching sun, believing that the water on the car bo
【The owner's family car knowledge】Now there are more and more private car owners, and everyone hopes that their cars can be driven for a long time to reduce maintenance costs. To do this, you must learn to maintain your car scientifically. However, there are often some problems in car maintenance. Car maintenance experts said that some people thought they were maintaining the car, but in fact they accidentally damaged the car. After reading the following 12 kinds of wrong maintenance methods, you can also check your seat.
1. Wash the car under the scorching sun──damage the paint
principle:Under the scorching sun, the convex lens effect formed by the water droplets of the car wash will cause the uppermost layer of the car paint to produce a local high temperature phenomenon. After a long time, the car paint will lose its luster. If waxing at this time, it is also easy to cause uneven color of the car body.
Correct maintenance method:Car washing and waxing are best done under sheltered conditions. If it is not guaranteed, it is best to choose to do it in the morning and evening when it is cloudy or sunny.
Daily maintenance method:Many private car owners like to wash their cars under the scorching sun, believing that the water on the car body can be dried soon after washing.
2. Washing the car is like taking a bath-harming the air conditioner
Points to note:Be sure to keep the appearance of the car air conditioner dry. If the car air conditioner gets wet accidentally, it will affect the life of the car air conditioner.
Daily maintenance method:In summer, the temperature rises, the dust increases, and the body is easy to get dirty. The frequency of car owners washing their cars has also started to increase. Many car owners also hope to wash their cars thoroughly like bathing themselves.
3. Waxing in a circle ── poor effect
The correct way of waxing:In a straight line, alternating horizontal and vertical lines, and then the last one in the direction of rainwater flow, so as to reduce the effect of concentric circular halo on the paint surface.
Daily waxing method:Many people habitually wax the car body in a circle, which is not the correct method.
4. Too much oil-malfunction
Too much oil:However, if there is too much oil, the crankshaft handle and the big end of the connecting rod will be violently agitated when the engine is working, which will not only increase the internal power loss of the engine, but also increase the oil splashing on the cylinder wall and cause the oil burning failure. .
To maintain your car, the right amount of oil is the best: the oil in the engine oil pan should be controlled between the upper and lower engraved lines on the oil dipstick
Insufficient oil:When the oil in the engine oil pan is insufficient, the friction between the bearing and the journal will be poorly lubricated due to the small amount of oil, aggravating the degree of wear, and even causing a bush-burning accident.
5. Bolt is too tight-permanent deformation
The car bolts should not be too tight:If the screw is overtightened, on the one hand, the connecting piece will be permanently deformed under the action of external force; on the other hand, the bolt will be stretched and permanently deformed, and the pre-tightening force will decrease, and even cause the phenomenon of sliding buckle or breaking.
There are many fasteners connected by bolts and nuts in automobiles, and it should be ensured that they have sufficient pre-tightening force, but they should not be over-tightened.
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