Talking about the new car turning into scrap metal.

Do you want to clean the sludge from the engine?

Do you want to clean the sludge from the engine? There is no doubt that if inferior fake engine oil is used, the sludge inside the engine will be more peculiar because of the poor quality of the engine oil. Why is it called inferior engine oil, fake engine oil? Because there are good and bad fake engine oils, some are of poor quality, and the good ones can't be used.

Have a plenty of complete slag, completely unusable! Some drivers may think that if they drive less, the inside of the engine should be clean. No problem, the new car is like this at first, with less mileage and clean engine inside. But two years later, it no longer applies. There is not much dirt inside the engine, but due to the long parking time.

Even if there is a little sludge in the oil, it will settle down after a long time. On the other hand, some cars have a lot of sludge, but it is widely used. Sludge is dispersed in engine oil and even discharged during maintenance. On the contrary, the loss is not great, and most taxis can drive a long distance, which is also the reason.

First of all, let's talk about the composition of engine oil. Engine oil is mainly composed of base oil and additives. Base oils can be divided into five categories: index improvers, detergents, dispersants, extreme pressure antiwear agents, defoamers and preservatives. Detergent and dispersant are the main components to ensure the cleaning effect of engine oil, but the addition amount of these additives is strictly controlled.

Too much will affect the lubrication effect. The main components of carbon deposit are detergent and dispersant in essence, which is equivalent to adding the function of cleaning and dissolving carbon deposit in addition to the cleaning power of engine oil itself. It should be noted here that the cleaning process can only be run at idle speed, because the viscosity will decrease after adding it, and stepping on the accelerator will wear the engine.

Engine oil will slowly oxidize during normal use, and the speed of oxidation determines the life of engine oil. At the same time, due to the temperature, the engine oil thickens and forms a gelatinous viscous substance. These dark brown or black sticky substances are sludge. Sludge will stick to the key parts inside the engine, making it unable to get proper lubrication.

In addition, fuel, waste gas, water vapor, iron filings and other substances can also lead to the formation of sludge. Sludge is insoluble in engine oil, so it cannot be discharged effectively when changing engine oil. Adding new engine oil will accelerate the aging and deterioration of new engine oil, resulting in a decrease in the effective mileage of new engine oil. As we all know, engine carbon deposition is more harmful.

Heavy sludge is actually more harmful to the car, such as blocking the oil circuit, increasing friction, and the heat dissipation effect is not ideal. In severe cases, it will lead to vehicle failure and even engine overhaul. A small amount of sludge doesn't need cleaning at all. Some car owners often change the oil in advance for fear of fouling, or use detergent to clean the oil every time.

The formation of sludge is actually normal and inevitable. A small amount of sludge can even protect the engine. Before replacing the new oil, inject the cleaning agent into the engine from the oil filler hole and mix it with the old oil, then start the engine to idle for 10- 15 minutes, and then turn off the engine to drain oil.

Use the sludge cleaner together with the engine oil, and then replace it with a new one. Modern family cars use more and more gasoline direct injection (GDI) or turbocharged gasoline direct injection (TGDI) engines, so engine sludge has become a common problem, and special attention should be paid to automobile maintenance.

This statement may confuse some people, but the principle is simple. When the engine crankcase ventilation system works, the intake manifold sucks the exhaust gas discharged from the crankcase, and the other pipe is connected with the intake manifold on the crankcase to supplement fresh air to the crankcase. If the air filter is too dirty, the air inlet filter is not clean.

More dust will enter the crankcase and cylinder, which will inevitably accelerate the formation of sludge. If your car has been confirmed to have serious sludge, you can choose to use cleaning oil or take it apart for cleaning. Because the technical requirements for disassembly are relatively high, I think we can take a compromise method to remove the valve cover.

Manually clean the sludge in the valve chamber, and then clean the sludge inside the engine with cleaning oil. Because the valve cover can be removed relatively easily, and the sludge does not have to be completely removed by cleaning the engine oil.