Why do you have to wash your car after the rain?

Why do you have to wash your car after the rain? The old driver can't refute this explanation, and the owner is not calm!

With the arrival of summer, there are more and more rainy days. Many car owners think it's just raining if they don't wash their cars, but many riders still don't know the importance of washing their cars after rain. In the past two years, even the neighbors who have never been online know about it. Every time after the rain, they will wash their cars frequently with water guns. Some car owners are secretly excited, washing cars in rainy days saves money and water, washing cars in rainy days is free, and noble morality! Pollution is serious all over the country, and the rain in most places is acid rain. And the corrosion degree of acid rain is far beyond our imagination. However, I don't know how many taboos there are in washing cars after rain.

When a car is driving in rainy days, asphalt, muddy water and dust in the rain on expressway will adhere to the body surface. If it is not cleaned in time, a lot of oxides will be produced after sun exposure, which will rub on the surface of the car body like sandpaper, and it will have obvious roughness when contacting the car body. In addition, environmental pollution has become more and more serious in recent years, and acid rain will corrode car paint. So it is very necessary to wash the car in time after the rain. If you don't want to spend it in a professional car wash company, you should master some simple cleaning methods to reduce the damage to the car.

Every time it rains, the old drivers always take good care of their cars at the first time. Why? Maintenance of the car immediately after the rain, does it mean "another dry Kun"?

Now pollution is serious all over the country, and the rain in most places is acid rain. Rain is equivalent to naked exposure of car paint to acid rain. In the long run, the color of car paint will be dim, raindrops will mark, oxidize, and even crack ... Not only that, when the vehicle passes through the waterlogged road, acid rain will attach to the chassis. In the long run, the chassis will also be eroded by acid rain. Rain will not only remain on the surface of the car body, but also flow into the gap under the car body; When the car is driving in the rain, the sludge on the road will also splash into these gaps. If these parts are not cleaned in time, they will rust over time, which will not only affect the appearance, but also damage the vehicle.

combustion system

Dehumidification and drying should be timely. After the rainy day, many car owners find it difficult to start their cars, or even to ignite them.

This situation is mostly related to the humidity of the ignition system. When the car is running, the internal temperature of the ignition system in the engine compartment will increase accordingly. When it rains, the cold air outside the car meets the hot air in the engine compartment and condenses into water vapor on the ignition system. If the water vapor can't evaporate in time, it will affect the work of the ignition system and lead to the symptoms of difficult ignition of the vehicle.

Taking rain as a car wash, I believe many car owners have such a misunderstanding. Indeed, the vehicles soaked by the rain are dripping with water, crystal clear and beautiful, and look clean, but this is only an illusion seen by the naked eye. At present, the acidity of rainwater in cities is generally high, and the acidic components in rainwater have a strong corrosive effect on automobile paint, which will cause irreparable damage to automobile paint over time-when the car grows pockmarked, you will no longer regard these rainwater as "nectar".

Always clean the car body.

When the vehicle is washed by rain, there are some sticky substances carried by rain besides the rain left on the body. After the rain evaporates, these sticky substances will stick to the vehicle and it is difficult to remove them. Washing a car after rain is the person who really knows how to love a car. Because the acidic components in the rain have a strong corrosive effect on the automobile paint surface, it is necessary to beautify the automobile paint surface after the rain to prevent the rain from damaging the paint surface. The simple and effective method is waxing.

Wash the car with rain water, and then wash it again.

Some friends who regard rain as "natural car wash water" don't think that the car is clean after being drenched by rain. In fact, rain is acidic. If you don't wash the car again soon, the rain will erode the paint. Not only that, the air quality is far worse than before, and there are many impurities in the rain. Therefore, remember to wash the car again after it has been drenched by rain.

After rain, cars are prone to damp and mildew, which affects the health of people inside. At the same time, the welding parts between the door and the car body, hinges and locks inside the door are also prone to rust and corrosion.

3. Affect the circuit and damage the engine.

In thunderstorm weather, cars are easy to stall when wading. Once it is found that the engine is turned off after wading, never start it again, otherwise it will easily cause the engine to be scrapped. In fact, the circuit system of the car is the most injured in the rainy season. High-voltage distribution system is wet or short-circuited in water; Water enters the exhaust pipe; Water entering the air intake, that is, the air filter, may cause the car to stall and easily damage the engine. Therefore, after the rainy season, it is necessary to wash the car and check whether the circuit system is soaked or damp.

"With the increase of water and labor costs, the profit of car washing is getting lower and lower. In order to reduce the cost of car washing, it is inevitable for some car washing shops to use washing powder and soap powder to wash cars. " Ms. Zhang, the owner of a car beauty shop, said that regular car wash should use regular car wash liquid, and the car wash liquid containing water wax is the best. Because professional car wash liquid is neutral, it will not corrode car paint. If you use a car wash liquid containing water wax, you can also give a maintenance effect to the car body while washing the car.

Although the destructive power of acid rain is not small, there is no need to panic. We can still handle it. On rainy days, the owner had better give his car a paint care. If they want to be simple and quick, they can use waxing, and if they want to get longer and more effective protection, they can seal the glaze. After care, the paint of the car will have a protective layer against acid rain, which can basically despise those disgusting acid rain.

Don't expose yourself to the sun after washing the car.

Many friends may prefer to wash their own cars. After washing, they will expose their cars to the sun in order to make them work faster. However, in many areas, the noon and afternoon temperatures in June, July and August are as high as 35 degrees. If the car with water droplets is exposed to the sun, the high temperature will burn the paint. Therefore, it is recommended to choose morning or evening time for car washing in summer.

In fact, on rainy days, the car body is covered with a layer of soil, which is wrapped on the car body like fine sandpaper. Once there is friction, it is like polishing car paint with sandpaper; In addition, rain contains all kinds of harmful substances, which are absorbed by sediment, so acid rain can easily corrode car paint. Thirdly, after the rain, the muddy water on the car body will increase the surface temperature of the car body when it meets the sun, and the paint surface will be corroded bit by bit.

5. The car is damp and moldy

After rain, cars are prone to damp and mildew, which affects the health of people inside. At the same time, the joint between automobile door and iron parts is easy to rust and corrode. After the rain stops, the accumulated moisture should be removed as soon as possible, otherwise it is easy to get moldy.

6. Don't use washing powder and detergent as car wash liquid.

Because different cleaning products have different pH values, car owners should buy special car wash liquid when washing their own cars. Never use washing powder or detergent instead. Long-term use of such products instead of car wash liquid will corrode the car paint and make the car lose its luster.

The hidden danger lies in the small details.

In heavy rain, car lights can provide a great guarantee for our driving safety, especially fog lights with stronger penetration. In some vehicles that have been used for a long time, the waterproof ability of the headlights decreases, and there will be a situation of "tears blindfolded"-the headlights leak. If you leave it alone and don't deal with it in time, you are ready to accept the reality that your car is "blind"!

The leakage of car lights has a great relationship with the tightness of car lights. Therefore, when checking after rain, we should first pay attention to whether there is water mist in the headlights. If yes, it depends on whether there are cracks in the car lampshade or whether the edge sealing strip is damaged, and the relevant parts should be replaced in time.

Washing car paint with washing powder will gradually lose its luster.

Car washing must use regular car washing liquid, especially alkaline detergent and soap powder. Although these things have strong detergency, they are easy to damage the car paint. If you wash your car with alkaline detergents such as washing powder and soap powder for a long time, the surface of the car will gradually lose its luster. Therefore, remind the majority of car owners and friends that regular car wash liquid should be used for car washing, and alkaline detergent should never be used.

7. Pay attention to cleaning details after rain

Whether it is a car that gets wet in the rain or a car that is specially hand-washed, the details of the car chassis, wipers and window seams are often ignored by the owner. When cars are exposed to wind and rain for a long time, dust, impurities, leaves and bird droppings often fall into the small details of these cars. Therefore, car owners need to pay special attention to these details when washing their cars. If stubborn impurities cannot be removed, they need to choose a special cleaner to pour on the stain and wipe it when it becomes soft.

Many car owners regard getting wet as a car wash, which is a big misunderstanding. It is true that all the cars that have been rained are dripping and look clean, but this is just an illusion. In today's society, there are too many acidic substances in the rain, which do serious damage to car paint and cause irreparable losses.

Step 8 breed bacteria

Bacteria like humid environment best, and rainy season is the high season for bacteria breeding. There is sunshine on weekdays, which can keep indoor air circulating and ventilated, and the living space of bacteria is small. When the rainy season comes, car owners generally don't open the window for ventilation, so that bacteria in the car will multiply rapidly.

Due to the sudden wind and rain, vehicles parked in the open air are not only tested by paint, but also corroded by acid rain. In addition, thunderstorm weather will also cause water accumulation on the road surface, and acidic rainwater will also adhere to the chassis after the vehicle passes through the water-accumulated road surface.

Holistic nursing can't be saved.

Chassis is actually a very "hard-pressed" role: it often plots stones that are closest to the ground and often bounce off, drinks dirty water splashed on the ground in rainy days and sticks to sludge.

Misunderstanding of car washing

1. The same rag is used for car washing and cleaning. Many car owners are carrying a bucket of water and a rag to wash the car. It looks chic, but in fact it is very lethal. It is inevitable that there will be some fine sand in the rag for car washing. There is more water in the car, and the friction is smaller. When it is used to clean the car after wringing, it is sandpaper to clean the car. It is also not advisable for car owners to use worn cotton T-shirts and bath towels as cleaning towels. Because cotton cloth becomes hard and flaky after long-term use, it greatly affects the cleaning effect.

2. Daily car wash cleaning supplies

The pH value of cleaning products is different. In order to avoid the corrosion of car paint, you should buy professional car cleaner instead of using daily cleaning products to wash the car. Washing powder and detergent cannot be used as car wash liquid. Many car owners think that these lotions have strong detergency, good degreasing effect and easy access, so they are often used to wash cars. However, most of these lotions are alkaline and harmful to car paint. After long-term use, the car paint is corroded and loses its luster.

3. Direct high-pressure water gun spraying or dishcloth scrubbing

After driving for a period of time, dust particles will be attached to the surface of the car. Wash these dust particles with clean water before washing the car, and spray them directly with a high-pressure water gun or scrub them with a rag, which will cause dust particles to rub on the paint surface and damage the car body.

4. Abuse of high-pressure water guns. Some car owners have a convenient plan. When washing the car, they washed it with a high-pressure water gun and watched the sewage slide off the car body, thinking that the car was clean. In fact, this kind of high-pressure water gun cannot be used indiscriminately. If you wash the car after the rain, the dust on the car body is almost soaked by the rain. You can simply rinse with a high-pressure water gun to remove excess rain.

Body: clean and reliable.

Important index:

After the vehicle gets wet, the rain will not only remain on the surface of the vehicle body, but also flow into the gap under the vehicle body. When the car is driving in the rain, the sludge on the road will also splash into these gaps. When rain meets these sludge and dirt, it will form dirt stuck in the gap and hidden in an imperceptible place. These hidden sludge parts are black spots where moisture gathers, which will lead to rust on the lower part of the car body over time, which will not only affect the beauty of the car, but also cause damage to the car body.

5. Wash your car in the hot sun

Try to choose a sheltered place or when the sun is not big when washing the car. Because after the body is exposed to the sun, throwing cold water will damage the paint surface. Wash the car and dry it in the hot sun. After washing the car, the car was covered with water droplets, which became a condenser in the sun and burned the car paint at high temperature. Imagine that when we were young, we used a magnifying glass to gather light and make a fire. The principle is the same.

Skylight: keep this "overhead pass"

Important index:

Car owners who choose skylights are basically in the state of "good lighting", "good viewing" and "good enough grade", but skylights are the weak link of cars, and their femininity is certain, especially in rainy days, and they will encounter the embarrassing situation of "heavy rain outside the car and light rain inside the car" if they are not careful. In addition, because this position cannot form a plane with the roof, it is destined to be a place where rain and dirt accumulate.

7. Wash your car often

Don't wash the car too often. Frequent car washing will accelerate the oxidation of paint surface, resulting in dull and tarnished paint surface. Generally, weekly 1 time is appropriate.

When a towel is washed completely, there will be more and more tiny scratches on the car.

With the increase of online shopping, many car owners will choose to buy some auto supplies online, such as towels, sponges, bear paws and long brushes for car washing, but these tools also have different functions, such as "bear paws" for cleaning the car body, long brush wheels and sponge tires. Remember that these tools must not be confused, and the car wash should follow the principle of top-down.