Still believe that “high speed driving” can clean up carbon deposits? After reading this, you will understand what true carbon deposition removal is.

Nowadays, the domestic automobile industry is developed and there are more and more car owners. Daily maintenance of cars is a car care behavior that cannot be ignored.

Someone has said that from the time a car is purchased and driven until it is scrapped, it can be used twice as long with maintenance as if it is not maintained. Although there is no experimental confirmation, it can make people say this and see the truth behind it. .

In fact, the most important thing about car maintenance is engine maintenance, but many car owners do not have a clear idea of ​​how to perform maintenance and what items to perform.

After the car is used for a long time, there will be a shortage of power. This is obviously less powerful than before, and their exhaust gas will also have a serious impact.

Many people know that cars need maintenance, but they ignore a very important point, which is the cleaning of carbon deposits.

What is carbon deposit? What are the effects of carbon deposits? Why is there carbon deposit? Can carbon deposits be removed by driving at high speed? How to remove carbon deposits? …

Today we will talk about the carbon deposit that is attached to the engine all year round. See what it is.

Will there be a lot of carbon deposits due to long-term low-speed operation?

Will long-term driving at low speed lead to more carbon deposits?

1. Long-term low speed and constant speed conditions.

The first working condition will not cause more carbon deposits. Everyone knows that the current transmission has many gears and a much wider transmission ratio range than in the past. Coupled with the high torque characteristics of the turbocharger, the past 120km is basically non-existent. Speed, more than 5,000 The phenomenon of rotation is a phenomenon. In the daily operating speed range of about 1700-2500, most models can reach 120km at more than 2000 rpm (some 5-speed manuals are a different matter), so nowadays there is basically no high speed in normal cars!

In other words, most cars on the road run in the low speed range, so will more carbon deposits be produced?

In fact, no. The key to the amount of carbon deposits lies in the concentration of the mixture, that is, the air-fuel ratio. If the air-fuel ratio is kept in an ideal state, what is the problem with a low speed? For example, if you keep driving at a constant speed of 120km and 2000 rpm, the air-fuel ratio will be ideal around 14.7, and the amount of carbon deposits will be very low. Therefore, the speed is not the key to the increase in carbon deposits. The key is whether you can maintain an ideal air condition for a long time. Fuel ratio, so if you want the engine to have less carbon deposits, it is enough to drive at a constant speed for a long time.

2. When the speed is low, violently adding fuel to increase the speed will easily lead to more carbon deposits.

This problem mostly occurs in manual transmission models (automatic transmission models are almost non-existent), because some friends have a biased understanding of fuel saving. They always think that as long as the speed is lowered, fuel can be saved. They often use high gears and low drag, and do not downshift when the car speeds up ( It may also be due to lack of skill and forgetting to downshift), because To speed up the car, the engine needs to output enough power to push it. Power = torque (injection amount per cycle) * speed. When speeding up, the speed is not enough. In order to ensure that the output power can still maintain the acceleration of the car, the system can only increase the amount of fuel injection. Amplify the output torque per cycle!

How does carbon deposition occur?

1. Human factors

If you idle for a long time, the fuel cannot meet the requirements, causing knocking. When driving at low speed for a long time, the throttle valve is in a small open state. If the vehicle is not maintained on time, the engine will be in poor working condition for a long time.

2. Environmental factors

Traveling in a dusty environment for a long time will cause the air filter to be clogged, the mixture to be too rich, and the fuel in the cylinder to be burned incompletely; the air humidity is very high, especially in the south, where there is a lot of rain.

The air filter is easily blocked by moisture, and the engine air intake is not smooth, resulting in incomplete combustion of the mixture.

3. Mechanical reasons

The engine is running poorly.

The valve is not closed tightly, and the gap between the piston ring and the cylinder head is too large, resulting in depression of the cylinder and incomplete fuel combustion; poor spark plug operation, poor atomization of the injector into droplets, resulting in incomplete combustion; poor circuit operation such as the ignition coil; etc. etc. will lead to incomplete combustion and carbon deposition.

How to judge whether the engine has carbon deposits? If these conditions occur, it means that the car owner should remove the carbon deposits.

1. Increased fuel consumption

The first and most obvious thing is the increase in fuel consumption.

Carbon deposit is a gel substance with strong adsorption properties. It will absorb part of the fuel injected into the cylinder to a certain extent. It will also increase the resistance of some mechanical parts inside the piston and crankshaft.

Moreover, the fuel sucked out in this part will also form new carbon deposits in a state of incomplete combustion. Such a vicious cycle will consume more and more fuel.

2. The car is “boring”

When accelerating or overtaking, the car feels "stale".

No matter how hard we pedal, the car cannot perform as it should, and sometimes we hear abnormal noises coming from the engine, along with a sense of frustration. This basically means there is carbon deposits. , it feels especially obvious when overtaking.

3. The exhaust gas is pungent, and there is a lot of sludge and gum material in the exhaust pipe.

Severe carbon deposits in the engine will cause incomplete combustion of the mixture, and the emissions will accumulate on the exhaust pipe. If you find a large amount of black oil stains and a water-like substance when wiping with a paper towel, this usually indicates severe carbon deposits and possible burning of the oil.

If any of the above symptoms appear, it indicates that the carbon deposit in the car is serious, and the car owner is reminded to clean up the carbon deposit in time.

If the carbon deposits are not cleaned in time, the harm caused by carbon deposits to the car cannot be underestimated!

1. Damage to the internal structure of the cylinder: The various structures that form the combustion chamber in the cylinder are the main places where carbon deposits occur, including the top of the piston, the spark plug, the in-cylinder fuel injector, the intake and exhaust valves, and the cylinder entrance of the intake pipe.

2. Reduce engine power: When carbon deposits adhere to the cylinder and piston top, it will reduce the combustion chamber volume (space) and increase the cylinder compression ratio. When the compression ratio is too high, it will cause engine pre-ignition (solid engine knocking). Reduce engine power.

3. Increased fuel consumption: Carbon deposits on the throttle valve cause the throttle valve position to change. When the engine is idling, the computer receives this error signal and calculates the wrong fuel supply, which increases the vehicle's fuel consumption.

4. Exhaust gas exceeds the standard: When carbon deposits adhere to the oxygen sensor, the oxygen sensor cannot correctly sense the exhaust gas condition and cannot correctly adjust the air-fuel ratio, causing the engine exhaust gas to exceed the standard.

Therefore, for the safety of our car, we must do a good job in cleaning up carbon deposits!

When the car shows these signs, it means there is too much carbon deposit!

1. The vehicle has unstable idling speed

When the vehicle is driving, the engine speed is unstable and fluctuates high and low, which means the engine shakes and the speed is uneven. This may be caused by excessive carbon deposits inside the engine.

When there is too much carbon deposit inside the engine, the gasoline injected from the fuel injector will be absorbed by the carbon deposit, so that the power cannot be fully converted, and the vehicle will have unstable idling while driving.

2. Often unable to light the fire

Similar to the vehicle's unstable idle speed, if there is too much carbon deposit when the vehicle is cold started, the gasoline sprayed out of the fuel system will be absorbed by the carbon deposit before it can ignite. The mixture at startup will be too thin, so it will It often happens that the ignition key takes several times to light up. If this happens, you can consider whether there is too much carbon deposits in the car.

3. The car’s fuel consumption increases

This will cause the fuel consumption to gradually increase as the carbon deposits on the car continue to increase. The main places where carbon deposits occur on the car are four parts: throttle valve, intake pipe, fuel injector and spark plug.

These parts play an irreplaceable role in the process of burning gasoline and converting it into power. The generation of carbon deposits will block the gasoline from entering the corresponding channels and absorb part of the gasoline. Of course, the vehicle's fuel consumption will increase over time.

When the car owner finds that there are no other abnormalities in the vehicle, but the fuel consumption continues to increase, if the carbon deposits have not been cleaned for a long time, maybe it is causing trouble.

4. Vehicle power decreases

When a large amount of carbon deposits adhere to the throttle, it affects the air intake volume and causes an imbalance in the proportion of fuel and air. Then the fuel combustion will be insufficient, and the power of the car will be obviously insufficient, so when cleaning Also remember to clean the throttle valve when there is carbon deposits.

If the above situations occur in our vehicle, it can be judged that the carbon deposit in the engine is serious and needs to be cleaned in time.

Can "High Speed" really remove carbon deposits?

The carbon deposits produced inside the car engine have always been a headache for many car owners. The presence of carbon deposits will not only increase the fuel consumption of the vehicle and damage the power, but also cause damage to the mechanical parts when the carbon deposits are too severe. Removing engine carbon deposits has become a matter of great concern to many car owners.

However, there is a method of cleaning carbon deposits in engines that is circulated in the market. Many car owners think that the carbon deposits can be removed by driving at high speed. So in fact, can the carbon deposits be removed by driving at high speed?

From a more rigorous perspective:

It cannot be said that the carbon deposits cannot be cleaned by driving at high speed. It can only be said that the carbon deposits cleaned are very small. Pulling at high speed is actually to keep the car engine running at high speed, thereby obtaining higher intake and exhaust efficiency. If it is higher, the engine will naturally take in more air and exhaust more air.

Under high-speed operating conditions, the carbon deposits that have just adhered to the combustion chamber, valves, and intake manifold will be washed away, but this method of cleaning carbon deposits is only effective for carbon deposits that have not yet formed a solid state. , it is also powerless against carbon deposits that have formed into a solid state;

To give a straightforward example, cleaning carbon deposits at high speed is like blowing on a dirty table covered with dust. Using your mouth can only blow off the dust that has just fallen on the surface, and the dust that has been there for a while. Obviously the little bit of air blown out by the mouth alone cannot be blown down.

From this point of view, it is only a very superficial way to clean up carbon deposits when driving the car at high speeds. Of course, those cars that run on high speeds for a long time do have much less carbon deposits in the engine than cars that often run in urban areas, but it is necessary to To put it more realistically, who can drive on the expressway every day without any trouble? Besides, it can't be cleaned at all.

Can "neutral throttle" remove carbon deposits? Maintenance worker: Teach you a stupid way to save fuel and money

The editor specially went to consult an old maintenance man who has worked in a car dealership for 20 years. He taught me a "trick" to save money - use a professional "carbon cleaner". It can effectively clean out the carbon deposits on major parts without damaging the parts. Not only is the carbon removal effect good, it will not damage the parts, and it will not leave any safety hazards for the major parts.

Next, I would like to recommend this disassembly-free three-way catalytic carbon cleaner:

First of all, it is a no-disassembly type. You can pour it directly into the fuel tank. It is very convenient to use. You don’t need to go to 4S stores and repair shops. It can easily remove carbon deposits while removing sludge, ensuring the normal operation of the engine and increasing the car’s engine horsepower. It speeds up quickly and helps you save fuel consumption!

This three-way catalyst can prevent rust while removing rust. It can quickly dissolve oil stains, make cleaning easy, and ensure more efficient engine operation! It can be poured directly into the fuel tank without disassembly, and the three-way cleaning can remove carbon deposits, bid farewell to excessive exhaust gas, and easily pass the annual inspection.

This three-way catalytic cleaner can clean the inside of the engine without disassembly, improve power, and save fuel consumption. It is very practical.

For cars under 3 years old, it is recommended to use three bottles for obvious effects. For cars between 3 and 7 years old, it is recommended to use five bottles for obvious effects. For cars between 7 and 15 years old, it is recommended to use nine bottles for obvious effects (both gasoline and diesel models are available. You can place your own order and choose)

During the current event, buy two and get one free, buy three and get two free, and buy five and get four free. The gifts are also of the same style, which is super cost-effective.

If your car has insufficient power and high fuel consumption, you can try this no-disassembly three-way catalytic cleaner, the effect is really good!

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