Why do German cars burn engine oil? What is the reason why German cars generally burn engine oil?

Most of the cars on the market now burn engine oil, and most of them are French cars, German cars, and BMW cars.

The main reason for burning engine oilThere is a problem with the fittings, the wastegas valve, the valve seal, the cylinder is pulled in the cylinder, and the cylinder pressure is insufficient.

If the oil circuit is not cleaned for a long time, the antifreeze is not replaced in time, the oil life cycle is too long, the piston ring is stuck, and the more common situation is that the piston ring is stuck.

What is piston ring seizureStagnation starts from the oil circuit, the oil bears the temperature at 110 degrees, and the high temperature caused by the long-term unclean oil circuit makes the oil at a temperature of 120 degrees or higher for a long time, so that the oil will fail in advance, the small hole of the oil ring is very small, and the oil inside will be dried and scabbed for a long time, and a cylinder stuck is a liter of oil for 5000 kilometers, at this time, the working conditions of other cylinders will also begin to be bad, and soon the 4 cylinders are stuck, and it will become a liter of oil for 1000 kilometers or even hundreds of kilometers.

SolutionAt present, there are two methods on the market to solve the problem, one is overhaul, and the second is PNF repair agent. In the case of overhaul, the cost is very high, the vehicle depreciates quickly, and the later run-in is also very troublesome. I've seen riders repair it with PNF repair agent before, you can refer to it.

The main reason why German cars burn engine oil is that the engine manufacturing process is different, and its engine cylinder walls are in a mesh structure, and these small mesh holes become a place for engine oil. The advantage of this is that the wear of the engine cylinder wall is very small, and the piston can play a better lubricating role when running up and down in the cylinder.

This is one of the reasons why German engines last longer. In many German cars, the engine can still maintain a good condition after hundreds of thousands of kilometers.

German car burns engine oil, is it a poor quality or a technical problem? It turns out that the problem is here!

The main phenomenon of burning engine oil is the exhaust pipe emitting blue smoke, and the oil consumption in the engine is significantly increased. There are two reasons for this:

1. Natural wear and tear. With the increase of the mileage of the car, the wear between the piston and the cylinder gradually increases, when the wear increases to a certain extent, the cylinder blow-by will begin, and then the phenomenon of burning engine oil will occur. When the valve oil seal is damaged, it will make the oil burning phenomenon more obvious.

2. Improper maintenance. 1. Maintaining the engine according to the specified mileage will prolong the service life of the engine. On the contrary, even if the mileage is exceeded and not insured (i.e., the insurance is delayed).

If the oil is too dirty, the impurities in the oil will accelerate the wear of the engine cylinder. 2. Too much oil is added. 3. Improper selection of air filter element, machine filter element, engine oil, etc., the gas impurities entering the cylinder can not be well purified, and all kinds of dust particles enter the cylinder, accelerating the wear of the cylinder.

The quality of the filter element is poor and does not play the role of the magazine in the filter oil. Counterfeit engine oil or the oil used does not match the oil grade of the vehicle used, so that it will not be able to form a good oil film on the friction surface of the engine. 4. The ignition time is too early or too late.

Premature or late shock will increase the temperature of the engine, and in severe cases, the piston will fall off the top and the cylinder block will be scrapped. In its initial stage, there will be serious cylinder blow-by gas and burning engine oil. 5. There is too much dirt in the water tank in the cooling system.

The radiator and condenser are too dirty, which reduces the ventilation and heat dissipation capacity, and increases the normal working temperature of the engine. Due to the high temperature, the quality of the oil film produced by the lubricating oil during friction decreases, and the wear of the cylinder is intensified.

In fact, it is not a bad thing for German cars to burn engine oil, because there are grids on the cylinder walls of the design that can store the oil and better lubricate the engine. Burning engine oil is also an unavoidable one. As long as the burn is not particularly strong, it is normal.

Just pay more attention to maintenance. Use high-quality GT Magic Red, Mobil EP, etc., to prevent carbon deposits and power loss in the process of burning engine oil.

It is a common problem for German cars to burn engine oil, which has also become a symbol of Volkswagen. There are also more advanced Mercedes-Benz, BMW, and Audi also have the problem of burning engine oil, and it lingers. So, the question is, why do German cars have the problem of burning engine oil?

Could it be that the technology is flawed? Why don't Japanese cars burn engine oil?

If you think so, you have really wronged the German car. In fact, this is deliberate, and it is designed that way. Seeing this, are you already confused? Don't admit it, you must be like this, Master Ji was stunned for a long time when he first found out.

Seriously, why should German cars be designed like this? This is when it comes to the processing technology of German car engines?

The cylinder wall of the German car engine will form a net-like groove on the surface during machining, of course, this groove cannot be seen with the naked eye, and can only be seen with a special microscope. The function of the groove is to store the oil, so that the lubrication performance of the piston when running up and down in the cylinder is better, so that the wear between the piston ring and the cylinder wall is minimized.

Another point is that the piston ring toughness of German cars is better, and the tension is relatively weak, which reduces the wear caused by the piston ring running up and down on the cylinder wall.

Combined with the above two reasons, although the wear of the cylinder wall is reduced, it is inevitable that part of the oil enters the cylinder, resulting in the situation of burning the engine oil. In other words, there is only one choice between increasing the wear and tear on the cylinder walls and burning the oil, and there is no doubt that the German car chose the latter, in fact, in order to make the engine last longer. Those ideas we had in the past were actually wrong to blame others.

On the contrary, Japanese cars chose the former, which is also the reason why many Japanese cars do not burn engine oil much, but it is difficult to say the life of the engine.

Why does the car "burn oil" and what should I do after burning the oil?

Why are German cars prone to burning engine oil, while Japanese cars are not? It turns out that the real reason is here!

Why do German cars generally burn engine oil, but Japanese cars don't burn for 20 years? Now I know.

Why are German cars easy to burn engine oil? What to do if you burn engine oil? You'll understand after reading it!

Generally, the air in the car is smelly, if the new car will not, it will be three years later, especially the smell of hot dust.

The main reason for burning engine oil in German cars is the design of the engine, which cannot be avoided. Burning engine oil is actually nothing, that is, it will produce carbon deposits, or you can change to a high-end engine oil with PAO base oil, so that there is no carbon deposit, like imported GT Magic Red engine oil, which is also more expensive.

In order to protect the engine and prolong the engine life, Volkswagen is designed to reduce the frictional resistance between the piston ring and the cylinder wall, and an oil film will be formed on the cylinder wall, and part of the oil film will be burned off with the gas burned at high temperature, so the oil loss is more than the same period last year.

1. Volkswagen's processing technology for engine cylinders, the engine cylinder wall is shown as a mesh shape under the microscope, each small mesh is a "small oil depot" for storing oil, and the piston has better lubrication performance than the flat cylinder wall when running up and down in the cylinder, which also minimizes the wear between the piston ring and the cylinder wall.

2. The toughness of the piston ring of the Volkswagen car is better, and the degree of tension is weaker than that of the Japanese car, simply put, it is strong, but the elasticity is small, and this matching naturally reduces the wear caused by the piston ring running up and down on the cylinder wall, so the Volkswagen car after driving hundreds of thousands of kilometers to measure the wear of the cylinder wall of the engine, which is much smaller than that of other car series, and the engine can still maintain good working condition.

3. The engine is like the heart of the car, the engine burns oil in the final analysis, or the piston ring has a problem, under normal circumstances, there is no oil loss of 1000km, if it exceeds too much, it is possible to burn oil. If there is a problem with the sealing of the piston ring, the oil will follow the movement of the piston and secretly drill into the combustion chamber to participate in the combustion, and then the oil will be burned.

4. In order to prolong the service life of the engine, Volkswagen manufacturers cause engine oil to be burned.

Precautionary measures for burning engine oil:

1. Use high-quality engine oil

Engine oil is very easy to corrode and age in a long-term high temperature state, resulting in the oil film becoming thinner, and it is easier to escape to the combustion chamber to participate in combustion, so the use of high-quality engine oil can greatly delay this phenomenon.

2. Pay attention to the cleanliness of the fuel circuit

Carbon deposition is indispensable in the combustion process, and carbon deposition is the root cause of some automobile failures, such as the aging of valve seals, piston wall clearance, etc., which are directly or indirectly related to the formation of carbon deposition, so keeping the fuel oil circuit clean is of great help to prevent burning engine oil, of course, this needs to be done with the help of high-quality fuel additives.

3. With the help of external forces

Considering the relationship between domestic oil products, it is necessary to use high-quality engine oil and (PNF) fuel additives to achieve, which is also the key to solving the problem of burning engine oil without dismantling and repair.

So what about burning engine oil, it means that the car exceeds the normal consumption of engine oil, and the standard defined by our country is that 1000 kilometers shall not exceed the consumption of oil in liters.

We have to understand that not all oil consumption is called burning oil. Because the engine itself cannot fundamentally eliminate the consumption of engine oil. Everyone should have experienced such a life scene, a greasy plate or bowl, you use a spoon or even a knife to scrape, the oil will never be clean.

It's like two oil rings on a piston that can never scrape the oil off the cylinder wall.

Under normal circumstances, the phenomenon of "burning engine oil" in the car will damage the vehicle's oxygen sensor too quickly, resulting in an increase in carbon deposits in the combustion chamber, unstable idling, weak acceleration, increased fuel consumption, and excessive exhaust emissions. In severe cases, the engine lubrication is insufficient, which causes irreparable damage or even scrapping of the engine, resulting in a significant increase in maintenance costs and even potential accidents.

If your car burns oil, the symptoms are mild, when the car has run about 1000-2000 kilometers, there is more carbon accumulation in the exhaust pipe, and the oil shown on the oil scale is already below the normal scale, or it is no longer visible. Then the burning is serious because the exhaust pipe has already emitted blue smoke.

Because the oil storage structure of the German car engine is not the same, it uses a design similar to the anilox structure, which can make the cylinder seepage wall adsorb more oil, so that the piston ring is easy to form an oil film when it moves, so it has a better lubricating oil effect, but the loss of oil is also greater, so the German car will also burn the oil.

As of September 2019, German cars have changed the production process of the engine, and a breakthrough has been made in response to the problem of burning engine oil, so the degree of burning engine oil has been greatly reduced.

Generally speaking, the oil needs to be changed every 6,000 kilometers or so when the car has been driven. Engine oil has the effect of cleaning, cooling and lubricating the engine, and changing the engine oil can make the engine work better.

When changing the engine oil, the car must be replaced with the same kind of engine oil, and the engine oil of different brands and labels cannot be mixed, otherwise it will affect the work of the engine, and the engine will be damaged in serious cases.

It is normal for a car engine to burn oil, and if the oil loss is low, you don't need to pay attention to it. If the degree of oil burning is more serious than volt disturbance, you have to go to a repair shop or 4S shop to ask a professional to check and repair it to prevent unnecessary trouble.

German cars are well received by many car lovers due to their relatively high value retention rate, rich configuration and relatively durable characteristics.

The reputation of German cars in the Chinese market has gradually declined, and the reason for the decline in reputation is mainly because there are many cases of German cars burning engine oil, so many friends will ask, German cars begin to burn engine oil when they arrive in China, why is it rare in Europe? Here's the answer.

Clause. First, the difference between engine oil, German engine oil and our Chinese engine oil is different, the viscosity of German engine oil is higher than that of China's engine oil. Because of this reason, German cars are prone to burning oil in China, not that the quality of China's engine oil is worse than that of German engine oil.

Rather, it is the engine structure of German cars, which is more unique and more suitable for local engine oils.

Clause. Second, the development of German cars must first take care of local driving habits, and German roads and driving methods are different from ours, such as the driver's driving habits, speed limits, and traffic regulations. The accumulation of these problems has prompted German cars to burn engine oil after entering the Chinese market.

Clause. Third, traffic jams, traffic jams can be said to be very serious in China, not only in some metropolises, but also in some second- and third-tier cities. In Germany, traffic jams are very rare.

Because there is no speed limit on German highways, there are no traffic jams. And driving idle for a long time will inevitably increase oil consumption. The above are the 3 reasons why German cars burn engine oil as soon as they arrive in China.