Is it true that Japanese cars don t have the problem of burning engine oil? 10

First of all, let's take a look at the engine structure of German cars, the engine cylinder wall of German cars basically adopts a similar reticulated structure (oil storage structure), the oil storage structure of the engine cylinder wall is obtained through surface treatment, there are many structural forms: straight grain, cracked reticulum, grid reticulation, pits, etc., the German engine cylinder wall is mainly a mesh structure obtained by pine hole chrome plating surface treatment and honing.

The reason why the anilox structure is used is to make the cylinder wall more evenly adsorb more oil, so that the piston ring is easy to form an oil film when it moves, and has a better lubrication and protection effect. Therefore, the cylinder wall has good lubrication and wear resistance, making the most important structure of this engine have a long life.

In reality, although many German cars have been driven for more than 15 years or even reached the end of life, the engine is still strong and powerful. However, this design also has disadvantages, because the cylinder wall adsorbs more oil, resulting in a large amount of oil evaporation on the cylinder wall on the combustion side and is carried away by combustion, resulting in more oil consumption than ordinary honing straight structure, especially when the engine is low at low speed, the oil consumption will be greater.

Japanese cars are different from German cars, most Japanese cars have smooth cylinder walls and tight cylinder seals, which can ensure cylinder pressure and the engine can burst out a lot of torque when running at low speeds. Compared to the reticulated cylinder wall, the smooth cylinder wall will not have too much oil storage, so there will not be as much oil consumption.

Another reason is that the distance between the piston ring and the cylinder wall in German cars is larger than that of Japanese cars. Japanese cars, on the other hand, have a better seal between the piston and the cylinder wall. On the whole, the reason why German cars burn engine oil more than Japanese cars is because of the different design of the engine wall and the different clearance between the piston ring and the cylinder wall.

Most Japanese cars don't burn engine oil. Most Japanese cars do not burn engine oil because the piston ring tension is high, which can clean the residual oil on the cylinder wall. Japanese cars do not have a mesh design on the cylinder wall, which can reduce the residual oil on the cylinder wall.

Most Japanese cars do not have high engine speeds and operating temperatures, so there is basically no oil burning. The design concept of Japanese cars is different from that of German cars.

Japanese cars pursue more mature technology, more reliable quality, and lower maintenance costs, so Japanese cars are generally more durable, and the engine will not burn oil.

The piston ring tension of Japanese car engines is relatively high, which will scrape the oil on the cylinder wall, so Japanese car engines almost do not burn oil. Japanese engines do not have a mesh design on the cylinder wall, which can reduce oil residue on the cylinder wall.

German car engines pursue high technology, and the technology of German car engines is very new, but German cars will have some oil burning and leakage.

Due to high temperature and high pressure, German car engines will leak oil for a long time. Automobile oil burning is not necessarily caused by too large a gap between the cylinder wall and the piston ring, but there are many reasons for burning engine oil.

For example, a defective design of an oil-air separator can also lead to oil burning. The engines of all cars have a forced crankcase ventilation system.

There is a component in this system called the oil and gas separator, which can separate the oil and gas from the gas discharged from the crankcase.

If the oil-air separator is not completely separated, part of the oil and gas will be reintroduced into the combustion chamber to participate in combustion, causing the engine to burn oil.

The main reason is that the engine structure of Japanese and German cars is different. The piston ring selected for the Japanese car engine has high elasticity, which will not retain oil in the cylinder, and it is only smooth without oil, so the loss of the cylinder wall of the Japanese car engine is still relatively large. The cylinder and piston ring surfaces of Japanese and Korean cars are smooth, and the sealing effect is achieved by reducing the gap.

The surface of the cylinder and piston ring of the German car is gridded under the microscope, and this structure has good sealing performance. In short, although German cars are easy to burn oil, because the inner wall of the engine cylinder is not easy to damage, the engine usually needs to be overhauled at 300,000 kilometers. And Japanese cars do need 200,000 kilometers of overhaul.

In fact, burning engine oil is something that every car encounters after driving a long number of kilometers and years. Because the piston rings inside the engine will be worn, the wear gap is too large, and the oil will flow into the combustion chamber for combustion, and the failure of burning the engine oil will occur.

It's a common problem. There are two ways to solve the problem of burning engine oil

Overhaul. PNF restoratives.

Benefits of this one:In the case of overhaul, the cost is very high, the vehicle depreciates quickly, and the later run-in is also very troublesome. First of all, you need to find out the reason for your burning oil, oil circuit blockage, carbon deposits, piston ring stagnation can be repaired with PNF repair agent, there are many riders who have successfully repaired through PNF repair agent, you can refer to it.

1: German cars use more new technologies, while Japanese cars focus more on the use of mature technology.

2: The engine oil used is also different, and German cars provide guarantee through mature after-sales service.

3: Japanese cars below 300,000 are basically 5,000 kilometers of maintenance, short maintenance intervals, no need to add oil.

4: Japanese cars in general models (the price of less than 300,000) the original engine oil is generally mineral oil, the oil change cycle can not be too long, generally more than 5,000 kilometers need to be replaced, high-end Japanese cars (the price is greater than 300,000) will generally use slow semi-synthetic oil, so that the oil change cycle may be about 7500-10000 kilometers.

5: For German cars with a price of about 150,000 yuan, the original engine oil is basically semi-synthetic engine oil, so the natural oil change cycle will be 2,500 kilometers longer than that of Japanese cars of the same grade. The original engine oil of many German cars with a price of more than 200,000 yuan is fully synthetic, and the oil change interval can theoretically exceed 10,000 kilometers.

6: High-end cars generally use fully synthetic engine oil, and even many supercars use 0W-50 series super racing oil with excellent fluidity. The fluidity of the engine oil is good, which means that the viscosity is thinner, the benefits have been mentioned a lot, and there is also a disadvantage that because it is relatively thin, the proportion of oil flowing into the combustion chamber from between the cylinder and the piston ring is also larger, so the oil consumption is naturally much higher than those Japanese cars.

7: German cars pay attention to high horsepower and high power, while Japanese cars pay attention to saving resources.

8: The technology is different, the German car burns engine oil to protect the engine, and the cylinder stock.

9: Because the German car is a high compression ratio, high temperature, high speed engine, so the gap between the piston and the cylinder wall can not be too small, otherwise it is easy to hold the cylinder at high speed, so the oil consumption is somewhat high, but it is not equivalent to burning the oil. The Japanese engine is designed to have a low speed, so the gap between the piston and the cylinder wall can be designed to be smaller, which is also the reason why Japanese cars recommend using W-30, and it feels fuel-efficient with 40.

Japanese car brands] Toyota, Nissan, Honda, Lexus, Infiniti, Acura, Subaru, Mazda, Mitsubishi, Isuzu Isuzu, Suzuki, Daihatsu, Mitsuoka.

German car brands] Mercedes-Benz, BMW, Audi, Volkswagen (Golf, Jetta, Bora, Caddy, Sutar, Touran, Touareg, Santana, Passat, Polo, Gower, Phaeton, etc.).

Hope you can thank you.