Can pulling the expressway really remove carbon deposits?

Can pulling the expressway really remove carbon deposits?

Carbon deposition in automobiles is inevitable for gasoline vehicles. The longer the car runs, the more carbon is deposited. Therefore, it is a common topic to remove carbon deposits from automobiles, and there are several ways to remove carbon deposits.

The first is to disassemble the engine directly and scrape off the carbon deposit inside the engine with special tools.

The other is to add fuel additives containing decarbonization components to gasoline to remove carbon deposits bit by bit during the driving process of the car.

Third, when maintaining, put the fuel system cleaner into the engine and use the method of "putting the engine" to clean up the carbon deposit.

The fourth method is to clean up the carbon deposit at high speed. When driving at high speed, the air intake is large, which will definitely improve the air intake effect. High-speed and high-temperature operation means that the low-temperature soft carbon deposits in the engine have a chance to burn, because the deflagration of gasoline vapor makes the low-temperature and soft carbon deposits dispersed and released with the exhaust gas.

There will be some carbon deposits in the valve, spark plug and piston top, but the composition is different. The fluffy carbon deposit has a higher density, which improves the compression ratio of the combustion chamber, so that the fluffy carbon deposit no longer absorbs atomized steam, which makes the gasoline burn more thoroughly and generate more power. When driving at high speed, the greater the fuel injection quantity, the greater the stroke of gasoline, and the less viscous colloid impurities and carbon deposits around the fuel injector will be removed, so that the atomization effect is better and the power is more sufficient. For vehicles driving at high speed for a long time, the fuel injector will be cleaner.

Under normal circumstances, when the vehicle is driving at a constant speed of 120km, the power of the engine is only about 2000 rpm. If you want to keep it above 3000 rpm, you have to downshift. Of course, the manual gearbox is easy to control. If it is automatic, it can only be used in sports mode, or simply in manual mode or off-road mode.

Of course, low-speed acceleration can also be locked on expressways with flat roads, and the effect is the same. If the gearbox doesn't support manual mode or L and S gears, it is really difficult to turn 3000 rpm, and it is useless to step on the accelerator, because if it can't be stabilized above 3000 rpm, the fuel injection of the engine will increase, the air intake will decrease, and the carbon deposit will also increase.

There are two main types of carbon deposits in automobile engines. One is the sludge near the intake manifold and throttle. This is because after the car is turned off, the gasoline sprayed from the fuel nozzle is not quickly sucked into the cylinder for combustion, and the engine oil will adhere to the intake manifold and throttle. As time goes on, it will gradually form colloidal liquid, which will be mixed with dust and particles in the air to form this semi-solid sludge.

Second, there is hard carbon deposition in the valve and combustion chamber. This is because the gasoline is not completely burned, evaporated and oxidized when the car is driving at idle speed or low speed, and a layer of gum is formed on the valve and combustion chamber. When baking, these colloids carbonize and solidify to form carbon-like substances. This carbon deposit has strong adhesion and is difficult to remove.

In fact, many people don't notice whether there is carbon deposit in the car during daily driving, but if the carbon deposit is much less, it will affect the use of the car, the fuel consumption will increase, the engine power will decrease, the exhaust color of the exhaust pipe will become darker and darker, and the engine will be unstable. Take the car to the repair shop and ask professional maintenance personnel to check and clean it. They will remove the valve and engine in a professional way to check whether there is carbon deposit. Non-professionals should not disassemble it easily.

It is undeniable that high-speed pulling can remove carbon deposits, but it cannot achieve the purpose of removing carbon deposits. If the carbon deposition is serious, you still need to go to the 4S shop or workshop for special cleaning, but try to control the number of cleaning. The other side of excessive carbon deposition is damage to vehicles. If there is less carbon deposit, it will not affect the use of vehicles and need not be cleaned. Pay attention to your usual driving habits and oil products, and often let the vehicle drive at high speed or drive normally in expressway. Don't think it necessary to clean it.