Many people are troubled by car beauty care, mainly because of the high cost of maintenance. Some try to maintain their cars themselves, but due to improper methods, they may end up with counterproductive results. So, what methods should we be aware of? Car Beauty Talent Network will unveil the mystery for you. Several incorrect methods of car beauty care:
1. Washing the car like taking a bath - harms the air conditioning
As summer temperatures rise, dust increases, and the body of the car gets dirty easily, leading to more frequent car washes. Many car owners want to wash their cars thoroughly, just like taking a shower themselves. However, it is important to keep the surface of the car air conditioner dry. If the car air conditioner gets wet accidentally, it may affect its lifespan.
2. Washing the car under the scorching sun - damages the car paint
Many private car owners like to wash their cars under the scorching sun, thinking that this way the water on the car body will dry quickly. In fact, washing the car under the scorching sun causes the convex lens effect of water droplets, creating localized high temperatures on the uppermost layer of the car paint. Over time, the car paint will lose its luster. If waxing is done at this time, it can also cause uneven body color. Therefore, it is best to wash and wax the car in a shaded area. If this cannot be guaranteed, choose overcast days or mornings/evenings on sunny days.
3. Waxing in circular motions - poor effect
Many people habitually wax their cars in circular motions, which is actually an incorrect method. The correct way to wax is in straight lines, alternating horizontally and vertically, and finally following the direction of rainwater flow. This can reduce the appearance of concentric circular halos on the car paint surface.
4. Too much engine oil - causes malfunction
When there is insufficient engine oil in the crankcase, the bearing and journal will wear out faster due to lack of lubrication, possibly even causing a burnt bearing shaft accident. However, if there is too much oil, the intense stirring caused by the crank handle and large end of the connecting rod during engine operation not only increases internal power loss in the engine, but also increases the amount of oil splashing onto the cylinder wall, resulting in oil burning problems. Therefore, the amount of engine oil in the crankcase should be controlled between the upper and lower marks on the dipstick.
5. Long-term non-use or short-distance driving - damages components
Some people, although part of the car-owning crowd, usually "don't want" to drive, only using their cars when on vacation. In fact, such usage is very harmful to the car. The engine and transmission components will rust due to constant exposure to air, and the battery will lose its lifespan due to long-term natural discharge. The best method is to drive every few days for about 30 to 40 minutes.
6. Bolts tightened too much - permanent deformation
There are many fasteners connected by bolts and nuts on a car, which should have sufficient pre-tightening force, but should not be over-tightened. If over-tightened, on one hand, the connection parts will undergo permanent deformation under external forces; on the other hand, the bolt will suffer from tensile permanent deformation, reducing the pre-tightening force, and even causing slipping or breakage.
7. Fan belt too tight - increases bearing load
In hot summer weather, some drivers think increasing the tightness of the fan belt can improve engine cooling effects, so they continuously increase the tightness of the fan belt, making it too tight. Actually, this practice is wrong. The fan belt should be kept appropriately loose or tight, as being too tight increases the bearing load, accelerates wear, increases power consumption, and also bends the water pump shaft, elongating and deforming the belt, thus shortening its lifespan.
8. New battery not charged - reduces lifespan
The initial charge of a battery is called the first charge, which has a significant impact on the battery's lifespan. If it is not charged, simply adding "water" and using it directly will result in low battery capacity and a shortened lifespan; if directly charged, it will also shorten the lifespan. Typically, the first charge of a battery is best performed after adding electrolyte, using a small current charge for approximately 1 hour before installation and use.
9. Arbitrary addition of in-car equipment - affects driving safety
Private cars are the mobile homes of car owners, and pursuing comfort and luxury is understandable. However, some car owners install various devices in their cars themselves. Such modifications, if not handled properly, often adversely affect the performance and convenience of car control and reliability, leaving behind potential issues or affecting driving safety.
10. Imported tires - not necessarily suitable
Some people particularly emphasize "imported" when buying tires. A fatal flaw of new imported tires for domestic users is that they are not suitable. European roads are smoother compared to domestic conditions, so tires suitable for European roads do not perform well domestically, especially regarding side impact resistance, showing some "incompatibility", just like wearing Italian brand leather shoes on gravel roads, where tire side bulging is inevitable. After some foreign brands produce tires jointly in China, they add a layer of fabric on the tire sides according to domestic road conditions, greatly enhancing side impact resistance. Jointly produced tires perform just as well as imported ones.
11. Cooling water temperature too low - wears the engine
During hot summer weather, some drivers, to prevent the engine temperature from getting too high, require the cooling water temperature to be as low as possible; some drivers even remove the thermostat to achieve cooling purposes. These practices are incorrect.
Car engines are afraid of both heat and cold. If the cooling water temperature is too low, it will worsen fuel combustion, increase fuel consumption, exacerbate wear, increase engine oil viscosity, and decrease engine power. Experiments show that when the car is running and the cooling water temperature is 40-50 degrees Celsius, engine wear increases by 60-80%, power decreases by 25%, and fuel consumption increases by 8-10%. Therefore, the temperature of the engine cooling water is not necessarily better when lower, generally it should be controlled between 80-90 degrees Celsius.
12. Quickly adding water to a boiling radiator - cracks the cylinder
During hot summer weather, some drivers, upon seeing the radiator boil, worry about the engine temperature rising further and immediately turn off the engine to add water. This practice is wrong and could cause the cylinder head to crack due to sudden cooling.
If you encounter a boiling radiator, the correct method is usually: stop immediately, keep the engine idling to continue cooling; open the engine hood to speed up cooling. After the cooling water temperature drops, then turn off the engine. At this point, if the cooling water quantity is insufficient, add slowly to prevent the cylinder head from cracking due to sudden cooling.
Actually, there are many methods to avoid, and these methods are numerous. In daily life, please pay attention. Take good care of your car with care.
More: http://www.qcmrrc.com/qicherencai/news/20111014014541.html