What kind of engine oil is suitable for the engine of 2 0...

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According to the SAE method, there are 6 types of oil for winter, 5 types of oil for summer, and 16 kinds of general oil for winter and summer.

Winter oil grades: OW, 5W, 10W, 15W, 20W, 25W. The symbol W represents winter, the smaller the number before W, the smaller its low temperature viscosity, the better the low temperature fluidity, and the lower the applicable minimum temperature.

Summer oil grade, 60. The higher the number, the greater its viscosity and the higher the applicable maximum temperature.

Winter and summer general oil grade: 5w w w w w The smaller the number for the winter portion and the larger the number for the summer portion, the larger the applicable temperature range.

Quality indicators. According to the API quality classification, engine oil is divided into gasoline engine oil series (i.e., S series) and diesel engine oil system (i.e., C series), and the oil products of each series are arranged in alphabetical order (A, B, C, D, E, F), and are divided into several grades, and the lower the letter ranking, the higher the grade.

Selection method. The marking on the outer packaging of engine oil currently sold on the market consists of two parts: SAE viscosity classification level and API quality classification level. It usually starts with SAE and is followed by a viscosity code; The engine oil label classified by API quality generally omits the API and directly marks the quality grade code.

For example, the designation SAE10WSD indicates a winter gasoline engine oil with a viscosity classification of SAE10W and a quality level of API SD; The designation SAE30SD indicates the viscosity classification SAE30, and the quality grade is APE SD for summer gasoline engine oil; The label is SAE10W 30SD (or SAE10W 30SD), which indicates that the viscosity classification is to meet both SAE10W and SAE30 winter and summer general purpose gasoline engine oil, and its quality grade is API SD grade.

When choosing a motor oil, fans can combine the local maximum and minimum temperatures and refer to the car's "User Manual". If you choose an oil that is too viscous, it will increase the resistance to movement and consume engine power; If you choose an oil with too little viscosity, the lubrication quality cannot be guaranteed, and it will aggravate the wear of the engine. For engines that have been seriously worn and the gaps between the fittings are large, a higher viscosity oil can be used to strengthen the sealing performance of the fittings.

Hope mine is helpful to you.

It is recommended to use all synthetic motor oils.

There are many cars in the city, and the driving is gentle. Considering the fuel economy, we use 0w20 and 5w30 for high-speed and intense driving.

Mobil, Castrol, Amsoil, Shell, Total, Valvoline, Great Wall, Sunrise Stone, Sunshine and other brands are readily available. It is best to use fully synthetic engine oil and synthetic engine oil for turbocharged engines, which have good engine protection and long maintenance intervals.

It is a turbocharged engine, it is recommended to use fully synthetic engine oil, the viscosity will be higher, and the fully synthetic engine oil has better high and low temperature performance, suitable for worse vehicle conditions, has a longer oil change interval, and the protection of the engine will be better.

Synthetic motor oil is the product of modern technological advances. The advantages of synthesizers are numerous. For example, synthetic engine oil has higher lubricity than mineral engine oil, less frictional resistance, less oxidation, and strong cleanliness.

Semi-synthetic motor oil and fully synthetic motor oil are two classifications of motor oil (fully synthetic motor oil has no mineral oil in it, and semi-synthetic has a little bit of it).

The biggest difference between the two is that the fully synthetic oil is used at a wider temperature and has a longer service life; The same oil film requirements can be achieved with a lower viscosity of synthetic oils, while semi-synthetic oils need to use a higher viscosity than synthetic oils to achieve such requirements.

In other words, in the same operating environment, a fully synthetic oil can protect the engine with a lower viscosity.

Similarly, in the same working environment, fully synthetic oil has a much longer service life than semi-synthetic oil, so although the cost is higher, it is not much higher than mineral oil after comparing the number of oil changes.

Photo by Zhang Huangbin) @2019

It is an engine with turbocharging. It is recommended to use fully synthetic engine oil, which has higher viscosity, fully synthetic engine oil has better high and low temperature performance, is suitable for harsher vehicle conditions, has a longer oil change interval, and better engine protection.

Synthetic motor oil is the product of modern technological advances. There are many advantages to bonding materials. For example, synthetic motor oil is more lubricating, less resistant to friction, less oxidation, and cleaner than mineral oil.

Semi-synthetic motor oil and fully synthetic motor oil are two types of motor oil (fully synthetic motor oil does not have mineral oil in it, it is somewhat semi-synthetic).

The biggest difference between them is: fully synthetic oils have a wider temperature range and a longer service life; For the same oil rock lifting film requirements, synthetic oil can be achieved with a lower viscosity, while semi-synthetic oil can be achieved with a higher viscosity than synthetic oil.

In other words, the engine can be protected with a low-viscosity synthetic oil in the same working environment.

Similarly, in the same working environment, because synthetic oil has a much longer service life than semi-synthetic oil, although the cost is higher, it is not much higher than the number of oil changes.

1. Select according to the engine type. For example, diesel, gasoline.

2. Select according to the regulations on the use of the steam car. According to the working conditions of the automobile engine, the appropriate oil type and use grade should be selected.

3. Select according to the environment of the car. In winter, different viscosity grades of engine oil should be selected according to the local residual temperature in different regions, such as 5w 30 or 0w 30 engine oil should be used in northern winter.

4. Select according to the grade of the car. High-grade engine oil is a must for high-end cars. It is worth noting that low-grade cars are not only able to use low-grade engine oil, in the sense of a certain destruction, low-grade cars need good engine oil, because low-grade cars have certain defects in engine design and lubrication.

5. Priority is given to domestic brand-name engine oil.

Automotive oils include mineral oils, synthetic oils, and vegetable oils. The viscosity grade of the oil was classified by SAE method: 6 types of winter oils, 4 types of summer oils, and 16 types of winter and summer general oils. Oil quality grades are classified according to API grades. The higher the grade, the higher the working capacity of the oil.

The SAE grade represents the viscosity grade of the oil and can be divided into single-grade oil and multi-grade oil. For example, SAE30 and SAE40 are single-grade oils, and SAE10W-30 and SAE15W-40 are multi-grade oils.

The smaller the previous number, the lower the low temperature viscosity, and the better the engine's protection ability during cold start. The number after the "W" is an indicator of the high temperature resistance of the engine oil. The higher the value, the greater the viscosity and the higher the applicable maximum temperature.

API engine oils are divided into two categories: the "S" series represents gasoline engine oils; The "C" series stands for diesel engine oil; When the letters "S" and "C" are present at the same time, it means that the oil is a general purpose motor oil. If the "S" comes first, it is mainly used in gasoline engines.

On the contrary, it is mainly used in diesel engines.

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In the case of belts, if the car is turbocharged, it is recommended to use a more viscous oil, because the more viscous the oil, the more it can reduce the loss of oil and maintain a good cylinder pressure. Moreover, the engine temperature of turbo cave rock is relatively high, if you use too thin oil, it is easy to damage the oil film, which will also aggravate the wear of the engine and reduce the service life of the engine.