What issues should you pay attention to when washing your car?

Precautions for car washing in winter

How to maintain your car in snowy days has become a problem that car owners must face now. Some car owners do not understand the corrosive effect of snow on their cars, and leave their cars alone after the snow. Some car owners think that it is unnecessary to wash their cars after the snow. If they wash their cars today, they will rain again tomorrow, it seems that the gains outweigh the losses; snow Washing your car may seem like a trivial matter, but if you don't pay attention to this inconspicuous thing, it can damage the car at least, or destroy it at worst. Don't you believe it? Let’s take a closer look at the personal experiences of several car owners below. ?

?Why is the car paint still not bright after washing the car?

?Every snowy day, the car owner Mr. Li always thinks about cleaning the car, but sometimes it snows for several days in a row, and Li The husband put it off again and again. When he polished the car, he found that the paint was still not as shiny as before. What's going on? Car maintenance expert Hu Jianjun told reporters that the car must be wiped in time. Even if the weather forecast shows that it will snow in the next few days, don't delay without wiping the car. As long as it is covered with snow, it should be washed away immediately with clean water. Snow contains corrosive ingredients. Whether it is the paint, chassis, tires, or wheels, being covered with snow for a long time will cause damage. This is why Mr. Li's car paint was corroded.

?Warm reminder: Clean the car in time.

?Why does the car paint get worse the more you wash the car?

?Car owner Ms. Wang knows that washing the car immediately after snow will protect the car very well. But what puzzles Ms. Wang is that she washes the car immediately after every snowfall, but the car paint is still getting worse and worse. Why is this? It turns out that when Ms. Wang washes the car, she always carries a bucket of water and a rag. Of course, it is not impossible to wash the car by yourself. The key is that her method is wrong. She only uses a bucket of water every time she washes the car. The sediment repeatedly entrained in the bucket scratches the car paint. Moreover, the salt and alkaline substances in snow water cannot be washed away with just water. Hu Jianjun suggested that it is best to go to a professional computer car wash shop and wash the car body with warm water through a large amount of flowing water and neutral detergent added to the water. At the same time, the wheel brush specially used to clean the wheels will scrub the sludge in the wheel hub gaps very well. clean. Under normal circumstances, computerized car washers are equipped with chassis washing equipment. Powerful water jets are sprayed upward to wash the chassis, which can completely wash away the muddy water attached to the surface of the chassis.

?Warm reminder: You should change the water frequently when washing your own car. It is best to go to a professional computer car wash shop.

The car paint is bright, but the chassis is rusted

?The car owner Mr. Lei said that he would go to a professional computer car wash shop to wash the car immediately after snow, but he didn’t know why the car was The chassis was corroded, which made Mr. Lei extremely distressed. Hu Jianjun explained that computerized car washers are equipped with chassis washing equipment. Powerful water jets are sprayed upward to wash the chassis, which can completely wash away the muddy water attached to the surface of the chassis. However, because the muddy water adheres to the chassis for a long time, and a large amount of water is required during cleaning, Water sprays to all parts of the chassis. During the entire process, moisture has caused corrosion to the chassis, and the metal parts of the chassis will soon rust. Rust will accelerate chassis damage and is difficult to repair. Is there no cure? Of course not. Hu Jianjun suggested that Mr. Lei do a cleaning and anti-rust care of the car chassis. After thoroughly washing the chassis with a car washing machine, dry it immediately, and then have professionals use a special anti-rust agent for the car chassis to perform anti-rust treatment. Antirust agents contain anti-corrosion agents, wet removers and synthetic penetration protectants. They were first used in the marine industry, fleets and engineering construction. Because they have special effects on resisting salt spray and humid air, they were improved into automobile chassis. Anti-rust conditioner.

?Warm reminder: Don’t forget to clean and prevent rust of the chassis after washing the car.

?Why is the lock core frozen even though the car paint is clean?

?The reporter learned during the interview that after the snow stops every winter, many car owners go to the repair shop to unlock the car. The reason is Some car locks were frozen, and some had their keys twisted. Hu Jianjun told reporters that there is grease in the lock cylinder of new cars, which has a certain waterproof effect; but for cars that have been driven for three or four years, there is already a gap between the door and the keyhole, and the seal is not tight. If you rinse with a water gun in the open air, clean water will easily pour into the keyhole. At this time, due to the cold weather after snow, it is especially easy to freeze the lock core. If the car owner twists the key regardless of force, the key can only be broken. Therefore, before washing the car, it is best to tape the keyhole with tape to prevent water from entering. Use a computerized car washing machine to wash your car. The water mist is even and there is less chance of the door being frozen. If it freezes, you can drive the car to a slightly warmer place such as a basement or garage and park it. After ten minutes, the car lock will open naturally. In addition, you can easily open a frozen car lock by burning the key with a lighter.

?Warm reminder: Use tape to tape the keyhole before washing the car to prevent water from entering.

?Why did the windshield explode?

?The car owner, Ms. Yi, admitted that she was a "rookie" in car maintenance, and once she did something stupid. It snowed all night that day. When she woke up in the morning, Miss Yi found that her car was covered with ice and snow that was difficult to remove. Anxious, she took it for granted and brought a bucket of hot water, thinking that giving her car a hot bath would be enough to get rid of it. It was cold, but at some point, the windshield of my car suddenly burst.

Hu Jianjun, a car maintenance expert, said that giving your car a hot bath after snow is damaging to your car, because sudden changes in temperature will damage the car paint and make it gradually lose its luster. Of course, the car windshield may also be damaged by the pouring hot water. Exploded. Therefore, the correct way to wash a car is to start the car, turn on the heating system on the car, and then wipe the car with warm water.

?Warm reminder: Do not use hot water when washing your car. Use warm water instead.

?Why is the car door frozen?

?Car owner Ms. Zhao said that she would definitely not use hot water to wash the car after snow. However, once, she found after washing the car with cold water , but the car door was frozen and couldn't be opened, making her anxious. Why is this? Hu Jianjun believes that you should not use cold water to wash your car directly after snow. Especially after the engine heats up, the temperature of the front part of the car is relatively high. Washing with cold water will cause a rapid cooling, which is very detrimental to the surface paint, and the engine cannot be washed directly. After washing the car, Ms. Zhao did not open the door in time to wipe away the water stains. At this time, the remaining water in the door seam froze, which naturally froze the door. Don't panic when encountering this situation, and don't force it to open or close. Pay special attention to electric windows and wait for them to melt naturally before using them.

?Warm reminder: Do not use cold water when washing your car, you should use warm water instead.

?What should I do if it freezes while washing the car?

?The temperature is generally lower after snow. When washing a car on the street, a layer of ice will usually form on the car before you even have time to wipe it off. This phenomenon made the car owner Mr. Duan very upset. What made him even more upset was that watermarks were left on the car body after the ice melted. Hu Jianjun said that it is best to go to a professional computer car wash shop to wash your car, because the machine drying program there will blow the car body to 90% dryness, and even the remaining water droplets in the gaps in the car body can be completely blown out, and then manually replenished and dried. In this way, the dried car body will no longer freeze. At the same time, a layer of protective wax can be applied immediately to allow the car paint to be maintained as quickly as possible.

Precautions for car washing in summer

The hot weather in summer has many effects on cars. Even small things like car washing should be paid attention to.

First of all, be careful to use cold water when washing your car in summer. After the car is running at high speed, the engine, chassis and various operating systems are all in a high temperature state. If the car is suddenly washed with cold water, it will cause damage to its metal structure, especially the internal structure of the machine, and even burst in severe cases. Cars that have been parked in the sun for a long time should not be washed with cold water. This is because washing the car with cold water immediately after the car paint is exposed to the sun can easily cause the car paint to age. Moreover, washing the car with cold water cannot wash away the oil stains, and it will solidify the oil stains, making it difficult to achieve the purpose of cleaning.

In addition, it is best not to flush the interior of the car with water. Because the bottom of the cab floor rubber pad is not a "smooth plain", structural requirements make there are many grooves and through-holes under the cab floor rubber pad. After flushing with water, it will either be deposited in the groove and difficult to dry, or it will flow from the through hole to the gearbox and other components to cause rust. Especially for cars with better sealing performance, water cannot be used to directly flush the interior of the car body. The correct way is to wipe with a damp cloth and avoid water accumulation.

Precautions for computer car washing

Car washing usually uses a high-pressure water gun, suede and rags, but it is difficult to clean. The tiny sand particles hidden inside will cause scratches on the car paint, so Some people who love cars will choose computer car washing to reduce damage to the car. You should also pay attention to the following things when choosing a computer car wash.

1. It is best to use cotton roller brushes. The roller brush materials in computer car wash rooms are generally divided into two types: plastic and cotton products.

The plastic material looks like "glass filament". This kind of material can "draw" the car, and long-term use can cause "whip marks" on the car paint, especially dark paint, thus making the car lose its luster. The softness of cotton products can better improve these conditions, so cotton products are safer.

2. Choose a good car wash liquid. Computer car washes also have the problem of using liquid chemicals. If it uses detergent, even with a cotton brush, your car will gradually oxidize and lose its luster. The ideal car wash will leave in the wax you want and remove the dirt you don't want. The detergent removes wax and dirt indiscriminately. Professional car washing liquid is different. It removes oil, mud, and dirt, but it does not remove wax.

Top Ten Precautions for Car Washing

Whether you go to a car wash to wash your car or wash your own car, you must understand the requirements for car washing. There are ten taboos in car washing, have you noticed?

Do not wash the car until the engine has completely cooled down. This will prematurely age the engine.

Second, avoid washing your car under the scorching sun. This will leave traces of dry water beads on the car body.

Don’t wash your car in very cold weather. Once the water freezes it can cause the paint film to crack.

Do not use water other than soft water for cleaning, including hot water, alkaline water and water with higher hardness. Because these substances can damage the paint. Cleaning with hard water will leave marks and films on the car body surface after drying.

5. Avoid using high-pressure water to wash the car body. Excessive water pressure will damage the car body paint. If there is hard dust and mud on the car body, soak it with water first, and then rinse it with water. Use a dispersed stream of water to spray.

Six avoidances include adding detergent indiscriminately. Laundry powder, detergent powder and inferior soap are not allowed to be used during cleaning.

Because these detergents contain alkali, they may wash away the grease in the paint and accelerate the aging of the paint. Generally, no detergent is added when washing a car.

Seven taboos include rubbing rubbish indiscriminately. After rinsing with water, many people like to wipe it; there are two main problems with wiping: the wiping cloth used is unqualified and the wiping method is wrong. To wipe, use a soft rag or a soft, clean sponge. When wiping, wipe gently from top to bottom in the direction of the water flow. Do not wipe in circles or horizontally.

Avoid using detergents indiscriminately. There may be highly corrosive stains on the car body, such as asphalt, oil stains, bird and insect droppings, etc. These stains are difficult to clean and must be cleaned in the right way. When cleaning oil stains on the car body, use a sponge dipped in a little kerosene or gasoline to wipe it gently, and then apply polishing paste on the wiped area to make it as shiny as ever. If there are dead insects and other animal and plant sap on the car body, soak it with soapy water first; then wash it with a sponge soaked in water. If there are oil stains on the steering wheel, lamps, moldings and rubber parts, they can only be cleaned with ordinary soapy water. Do not use gasoline, detergent and thinner.

Avoid using hard cleaning tools to remove dirt. Use plastic brushes or blades to scrape stains, which can easily damage the paint surface.

Do not touch the surface of the car body with dirty hands stained with oil, or place oily tools or wipes containing organic solvents on the car body. This will easily leave marks on the paint surface or stain the paint. Face fades prematurely.