What are the most important things to pay attention to when choosing an engine oil model?

If you go outside for maintenance, it is more important to find a shop, although it is not a technical job to change the engine oil, but now many shops outside are using fake engine oil, so there is no trustworthy repair shop to bring their own engine oil, but also to save some money. Personally, the Accord originally changed from special engine oil to a fully synthetic Castrol in addition to the mileage can be more power, and the back is directly bought GT oil to change, and the acceleration is obvious, especially at high speeds, it is also a lot more silent. The Civic, which is only 70,000 or 80,000 kilometers, should continue to use 20 viscosity engine oil, and if you want to make the power better, you can directly use high-quality engine oil.

When we choose engine oil, there are two important things to look at, one is the grade of the engine oil, and the other is the viscosity of the engine oil.

We can see the level of engine oil on the outer packaging of the oil drum, and different grades of engine oil are for different engines. It is generally said that the higher the engine speed, the higher the cylinder pressure, the higher the oil requirements of the vehicle. We can refer to the manual, if there is no oil of the same grade to choose, we must choose a higher grade than its required level, and must not reduce the level.

In the choice of oil viscosity, we have to choose according to the use of your vehicle and the state of the engine, if you are in the north of the winter cold and long, we have to choose low temperature fluidity oil, if your engine is relatively old, the cylinder wall is not well closed, it is recommended that you choose a viscosity oil, if the oil is too thin may bring the problem of burning oil. In the southern region, since the temperature is relatively stable, you can choose 10w-20. There is no need to choose a very expensive oil.

There are a few more points to note when choosing an engine oil:

Oil from a gasoline engine cannot be added to a diesel engine.

Among the colleagues who can ensure the lubrication effect of the engine, we choose the oil with less viscosity, which will be more fuel-efficient.

Choose the right oil for your car environment, and don't blindly pursue high-grade oil.

Hope it helps!

Whether it is semi-synthetic engine oil or fully synthetic engine oil, it has its own label, which many car owners will also notice when changing engine oil, such as 5w-30 or 5w-40. These designations represent the oil's different frost resistance and high temperature viscosity. The number before w minus 35 represents the minimum temperature environment that the oil can ensure the normal start of the vehicle, and the later number represents the viscosity of the oil in the high temperature environment, the higher the number, the more viscous.

If you choose a big brand, you don't need to consider it and it is guaranteed, if you choose antifreeze engine oil in the north, such as Shell and Mobil, it is already very good, and it is useful to give a thumbs up.

The engine oil model refers to the viscosity specification of the engine oil, and the commonly used engine oil model for private cars is "0w w w w40". The "w" in the middle stands for winter; The number before W represents the low temperature fluidity, 0W represents the applicable temperature of the oil is -35, 5W is -30, 10W is -25, the smaller the number, the better the low temperature fluidity.

The better the cold start performance of the car, and the 0W oil generally has a better performance experience than the 5W oil; The number after w represents the high temperature viscosity of the oil, the larger the number, the higher the high temperature viscosity, we first choose the oil model according to the high temperature viscosity when we maintain.

Choose a method. Choose according to the vehicle type.

Japanese and Korean cars: Most Japanese and Korean cars usually use 20 viscosity oil because of the relatively sophisticated engine structure, especially the Japanese naturally aspirated engine. There are also some models like Jaguar Land Rover that can use 20 engine oil for 50,000 kilometers in the early stage.

It is formulated by the automobile R&D units, petroleum organizations and standard units in Europe, the United States and Japan, and is formulated according to the test results of the standard engine, which is widely adopted by various countries and marked on the packaging or description of the product for consumers to choose. Based on the test results of the standard engine, it is widely adopted in various countries and is marked on the packaging or description of the product for consumers to choose. (1) American Petroleum Institude, referred to as API(1) American Petroleum Institude, referred to as API, is mainly sold in the United States, and can be divided into two categories according to the standard of API motor oil

The main sales in the United States can be divided into two categories according to the standard of API motor oil: one is commercial oil (commerical oil), such as engine oil used in medium and large trucks, buses, engineering vehicles, etc., most of these vehicles use diesel as fuel, so they are represented by the prefix C, such as CE, CF-2, CF-4, CG-4, CH-4, CI-4, etc.; The second is the engine oil sold in general gas stations (service stations), which is usually used in cars and small vehicles with gasoline engines (excluding two-stroke locomotives), represented by the prefix S, such as SF, SG, SH, SJ, SL grades (see attached table), and the second word is represented by English ABC, and the higher the letter grade is higher.

1. The selection principle is to first select the appropriate quality grade, and then select the required viscosity grade. The selection of the quality grade is based on the severity of the operating conditions of the internal combustion engine, the oil capacity and compression ratio, the nature of the fuel, etc.

2. When choosing the performance level, it is necessary to consider it comprehensively and flexibly according to the use environment. When choosing a diesel engine oil quality grade, it can be determined by the engine strengthening factor. However, when the sulfur content of diesel is greater than that, a higher grade of oil should be used.

3. You should choose a higher grade of oil, although the first is slightly higher, but the comprehensive economy is better, such as extending the oil change period, saving fuel consumption, reducing friction and wear, prolonging the service life of parts, and reducing maintenance costs.

You can continue to change the 30 viscosity oil, 20,000 kilometers of the car is still a new car, with 40 I think it is a bit too sticky, but it will increase fuel consumption. The power is not good enough is mostly a problem with the oil, I am also 20,000 kilometers, and I am still 0W20 GT Magic Red oil (I am a Japanese car), I don't think the power is poor, but it is very strong, but GT Magic Red oil is the base oil of PAO, which belongs to a very high-end one, you can try 0W30 fully synthetic oil.

Car oil model selection: Temperature and operating conditions are two important criteria for choosing engine oil. In areas with low temperature in winter, try to choose a low number before W, if you like to drive fast or use a classic car, choose a high viscosity coefficient after W, and try to choose a high-end brand.

When choosing oil, there are two key points to look at, one is the grade of the oil, and the other is the viscosity of the oil.

The oil level can be seen on the outer packaging of the oil drum. Different oil levels for different engines. Generally speaking, the higher the engine speed, the higher the cylinder pressure, and the higher the oil requirements of the vehicle.

You can refer to the manual. If you don't have an oil choice of the same grade, you should choose a gear higher than its required level and never lower the level. As for the choice of oil viscosity, it needs to be chosen according to the purpose of the vehicle and the state of the engine.

If the north is cold for a long time, it is necessary to choose an oil with high fluidity at low temperatures. If the engine is old and the sealing between the cylinder walls is not good, it is recommended to choose a high-viscosity oil. If the oil is too thin, it may cause problems with burning oil.

In the southern region, because the temperature is relatively stable, you can choose 10w-20w. There is no need to choose expensive oil.

There are a few points to pay attention to in oil selection: the oil of the gasoline engine cannot be added to the diesel engine. While ensuring the effectiveness of engine lubrication, choose a less viscous oil, which will save fuel.

Choose the right oil for your car environment, and don't blindly pursue high-grade oil.

The principle of engine oil selection:

The viscosity of the engine oil recommended by the user manual is tested by comprehensively considering the high temperature protection of the engine oil and the low temperature fluidity, fuel consumption and other comprehensive factors, and is generally the most suitable for the engine, so the principle of choosing the engine oil is: refer to the user manual, try to use 0W, 5W fully synthetic engine oil, you can choose 5W in the south, and 0W can be used in the north!

In fact, the main difference between different grades of engine oil is the viscosity of the oil.

In the oil label, the value in front of W indicates the viscosity of the oil at low temperature, the smaller the value, the lower the viscosity at low temperature, and the better the low temperature starting performance.

The value after w indicates the viscosity of the oil at high temperature, the larger the value, the greater the viscosity at high temperature, and the better the protection performance of the engine at high temperature.

Rena can choose 5W-20 or 5W-30 fully synthetic engine oil, such as Mobil, Exxon, Castrol These are good. I've been using G T Magic Red, which is also good and worth using for a long time, and it's relatively quiet. And it is better if you use the engine oil according to the model required by the manufacturer.

Which car is suitable for each oil designation? Which one is better? According to the use of the oil to decide whether it needs to be replaced, drop the oil on a piece of white paper, and then identify the oil use according to the oil color replacement judgment chart.

With constant use, the oil will slowly deteriorate and be mixed with impurities.

1.Fully synthetic engine oil: Fully synthetic engine oil has better high and low temperature performance, longer oil change interval and is suitable for more severe car conditions, suitable for luxury high-performance vehicles, and is replaced at about 10,000-12,000 kilometers.

2.Semi-synthetic engine oil: The replacement cycle of semi-synthetic engine oil is generally about 8000-10000 kilometers, and the performance is moderate.

3.Mineral oil: This type of oil generally needs to be replaced after about 5000 kilometers.

Try to choose multi-grade oil, multi-grade oil has a better protection effect on the engine due to saving, long life and high efficiency.

First of all, you need to explain the brand, displacement, model, petrol or diesel, the age of the car, your driving style, and your temperature in winter and summer. Only by knowing this, I can better introduce the right engine oil for your car. You don't say anything, I can only introduce you to Mobil One 0w40.

Because this oil is suitable for a wide range of conditions, there is no problem with any car use. Gasoline and diesel are universal, small rows and large rows are OK, and the temperature is ......... below zero and above 40 degrees

Generally, family vehicles that burn gasoline can use yellow shells, Speedmaster 1000 and the like, **around 150, good cars can be used for good points, **hundreds of them.

Valeant's engine manufacturers require the use of 5w-20 0w-20 oil viscosity, 0w-20 oil is synthetic oil, you can 10,000 kilometers or once a year maintenance.

Choosing engine oil is not the more expensive the oil, the better the effect, if you are really unsure, you can refer to the car's "user manual" to choose, you will not go wrong.

But there is a principle that must be followed, that is, the choice of engine oil can improve the grade, but can not be reduced, for example, the original loading oil is fully synthetic engine oil, 10,000 kilometers to change the oil, you can not choose mineral oil, which is obviously not suitable.

I don't know how long you've been driving this car, if it's not long, it's good to buy a 30, if you drive for a long time, buy a 40, a little thicker oil is better for your car's start, I now use imported engine oil I think it's okay, if you like to see it yourself.

What is the difference between car oil labeling?