Is there still a different type of engine oil in summer and winter?

Due to the different properties of the engine oil itself, it is generally divided into winter oil and summer oil, if winter oil is used in summer, it will cause waste economically; Conversely, the use of summer oil in winter can cause serious mechanical failure. Proper identification and use of motor oil can improve work efficiency, reduce energy consumption and extend service life.

The model number should be indicated on the outer packaging of the oil drum, which is composed of English letters and Arabic numerals. Take "SFL5W 40" as an example. The first letter indicates the properties of the oil, such as:

"S" indicates gasoline engine oil, and "C" indicates diesel engine oil; The second letter indicates the quality grade of the oil, which is indicated by the letters A, B, C, D, E, F-, and the further back it is, the higher the grade of the oil.

"50w-50" is the viscosity grade mark, which refers to the thickness or consistency of the engine oil at a certain temperature.

Winter: At low temperature, the viscosity of the engine oil becomes larger, which causes the difficulty of cold start of the car, and the wear and tear caused by the engine when starting is more than twice that of usual.

Summer: When the temperature is high, the viscosity of the lubricating oil decreases when heated, the oxidation resistance becomes poor, it is easy to deteriorate, and even causes failures such as burning tiles and holding shafts. Therefore, when the engine is at high temperature, the viscosity of the engine oil is required to be larger to ensure the adhesion of the engine oil.

1. The grades of winter oil are as follows:

0w, 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;

2. The grades of oil used in summer are: the larger the number, the greater its viscosity, and the higher the applicable maximum temperature;

3. The general oil grades in winter and summer are:

5w w w w w w-50, the smaller the number representing the winter part, the lower the applicable minimum temperature, and the larger the number representing the summer part, the greater the applicable maximum temperature;

4. Generally, the applicable range of winter engine oil is -50° 25°, and the applicable range of summer engine oil is -15° 55°

There are three types of engine oil models: summer, winter and seasonal oil 1

The oil grades used in winter are: 0w, 5w, 10w, 15w, 20w, 25w, the symbol w represents winter is the abbreviation of winter (winter), the smaller the number before w, the smaller the low temperature viscosity, the better the low temperature fluidity, and the lower the applicable minimum temperature; 2.The grades of summer oil are as follows: the larger the number, the greater the viscosity, and the higher the applicable maximum temperature; 3.The general oil grades in winter and summer are: 5w w w w

1) High temperature type (such as SAE20 SAE50): The number indicates the viscosity at 100, and the larger the number, the higher the viscosity.

2) Low temperature type (such as Saeow Sae25W): W means only used in winter, the smaller the number, the lower the viscosity, and the better the low temperature fluidity.

The winter oil grades are: 0w, 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.

The grades of summer oil are as follows: the larger the number, the greater the viscosity, and the higher the applicable maximum temperature;

The general oil grades in winter and summer are: 5w w w w

The viscosity level of the oil is 0w20, and w indicates winter, low temperature. The lower the number in the front, the better the fluidity at low temperatures, and the higher the numbers in the back indicate the higher the temperature in case of high temperature protection. There is no such thing as winter oil, summer oil, but simply the viscosity level of the oil used in winter and summer.

Hello, for the current engine oil, there are very few single-grade engine oils, basically all seasons are universal, this you can take a look at the viscosity of the engine oil, the front is winter, which means that the back is the summer logo.

Hello, there are six kinds of general winter engine oil, 0w, 5w, 10w, 15w, 20w, 25w, w represents the meaning of winter, the smaller the number in front, the better its low temperature fluidity, the smaller the viscosity, and the lower the applicable temperature. There are four kinds of summer engine oil, 20, 30, 40, 50, the higher the number, the greater its viscosity, the higher the applicable maximum temperature.

Hello, the viscosity of the engine oil in winter is small, which is conducive to low temperature start in winter, and the viscosity of engine oil in summer is large, and it is very difficult to take a taxi in winter.

Winter and summer engine oil depends on the cold resistance, the number in front of w is, for example, 10w is a little less cold resistance, and 0w is better cold resistance.

Nowadays, the engine oil added to the vehicle is basically all four seasons, and there are more general-purpose engine oils, that is, the summer and winter of the label 5w-30 can be used.

Hello now the engine oil is basically all four seasons engine oil, generally w front number represents the mark used at different low temperatures, w back indicates the high temperature fluidity of the oil, the normal choice of 10w-30 can be, I am happy to answer for you!

Mainly look at the model, the symbol w represents winter is the abbreviation of winter (winter), the smaller the number before w, the smaller the low temperature viscosity, the better the low temperature fluidity, and the lower the applicable minimum temperature;

This looks at its low-temperature fluidity, which is the number in front of w. The lower that number, the more suitable it is for winter, which is generally the case in the north.

This mainly depends on the viscosity, the maximum temperature and the minimum temperature, and the current engine oil is generally four seasons.

Winter lubricating oil is divided into six grades of --18° viscosity, with a total of 0w10w15w20w25w. The smaller the number, the wider the scope of application.

Summer lubricants are classified by a viscosity of 100° and are available in 20304050 four grades. The higher the number, the wider the scope of application.

Generally, the scope of application is different, because the temperature varies greatly in various places, so for the sake of economy, the winter engine oil and summer engine oil are distinguished, and the place where the engine oil is sold will tell you.

Generally, the applicable range of winter engine oil is -50° to 25°

Generally, the range of summer engine oil is -15° to 55°

Engine oil, that is, engine lubricating oil, is known as the "blood" of the car, which can lubricate, clean, cool, seal, reduce wear, prevent rust and corrosion of the engine. The engine is the heart of the car, and there are many metal surfaces in the engine that rub against each other, and these parts move fast, the environment is poor, and the operating temperature can reach 400°C to 600°C. Under such harsh working conditions, only qualified lubricating oil can reduce the wear of engine parts and prolong the service life.

Engine oil, that is, engine lubricant English name: engineoil. The density is about to be able to lubricate and reduce friction, cool and cool down the engine, seal and leak proof, prevent rust and corrosion, and absorb shock and cushion.

The engine oil on the market can be divided into two types: mineral oil and synthetic oil due to its different base oils (vegetable oil is not counted due to the scarcity of production). Synthetic oil is divided into: fully synthetic and semi-synthetic.

Fully synthetic motor oil is of the highest grade.

Engine oil is made up of two parts: base oil and additives. Base oil is the main component of lubricating oil, which determines the basic properties of lubricating oil, and additives can make up for and improve the shortcomings of base oil performance, give some new properties, and are an important part of lubricating oil.

Lubricating oil base oils are mainly divided into two categories: mineral base oils and synthetic base oils. Mineral base oils are used in a wide range of applications in large quantities (about 95% or more), but some applications require the use of synthetic base stock blends.

Divided by viscosity.

10W-40 is its SAE standard viscosity value, this viscosity value first indicates that the oil is a multi-grade engine oil, W stands for winter, the number in front of W represents the flow performance at low temperature, the smaller the value, the better the starting performance at low temperature. The number after w represents the stability of the oil at high temperatures (i.e., the possibility of thinning), and the higher the value, the better the stability of the oil at high temperatures.

It can be distinguished according to the viscosity of the oil. Summer engine oil labels are: SAE30, SAE40, SAE50, etc., the number marked after SAE indicates the viscosity of the oil at 100 degrees Celsius, and the larger the number, the greater the viscosity of the oil.

Winter engine oil labels are: SAEOW, SAEL5W, etc., the W after SAE indicates winter (winter), and the number also indicates viscosity, the smaller the number, the lower the viscosity.

The most important function of motor oil depends on an important characteristic, that is, viscosity, which is the viscosity of the oil to provide a protective film for the operating parts of the engine. Generally speaking, viscosity is the physical properties of oil (and viscosity index is a physical and chemical index of base oil), and it is the degree of difficulty of fluid or semi-fluid flow, that is, it is commonly said to be "thick" or "thin". The higher the viscosity, the slower the flow rate.

Depending on the characteristics of the oil, when the temperature is low, its kinematic viscosity increases, which may make it difficult to start the vehicle or increase fuel consumption. When the temperature is high, the kinematic viscosity of the oil will decrease, resulting in a decrease in the life of the oil. Therefore, the kinematic viscosity of the engine oil used in winter should generally be lower, that is, it usually looks thinner.

As for the engine oil used in summer, you need to choose a higher kinematic viscosity and the oil looks thicker.

Photo by Liao Wei of Pacific Automobile Network).

In fact, today's engine oil is no longer divided into winter and summer. Now, motor oil only has the ability to adapt to temperature. Winter oil and summer oil originated many years ago.

Due to technical limitations, motor oil can only be used in a relatively narrow range of temperatures. For example, if you want to make the engine easier to start in winter, you need to use low-viscosity oil, but in summer, such low-viscosity oil will be too thin, so you need to change high-viscosity oil in summer. The oil does not distinguish between winter and summer, but low-grade oils flow better at low temperatures.

Generally speaking, the adaptability of oil viscosity to temperature has been very extensive, especially with synthetic engine oil, the low temperature fluidity of engine oil is better, and it can reach a large span of oil viscosity of 0w-40 5w-50 10w-60.

The difference between summer and winter oils.

Depending on the characteristics of the oil, when the temperature is low, its kinematic viscosity increases, which may make it difficult to start the vehicle or increase fuel consumption. When the temperature is high, the kinematic viscosity of the oil decreases, resulting in a shorter life of the oil. Therefore, the viscosity of the oil used in winter is generally lower, that is, it usually looks thinner.

As for the oil used in summer, you need to choose a higher sports viscosity, and the oil looks thicker. The specific identification method can be selected and judged according to the label on the oil bottle. When the label on the bottle body is only 0w or 5w, it means that it is winter oil, and its limit applicable ambient temperature is -35 or -30, the higher the w number, the worse the low temperature fluidity.

In addition, if the label on the bottle is only 30 or 40, it means that this is the limit of summer oil, and the applicable temperature is 30C or 40C, the higher the number, the higher the kinematic viscosity of the oil at 100C.

The special oil labels for high temperature environment are: SAE30, SAE40, SAE50, etc., the number marked after SAE indicates the viscosity of the oil at 100 degrees Celsius, and the larger the number, the greater the viscosity of the oil. This oil is suitable for use in the summer heat, and the higher the temperature area, the larger the number designation.

The special engine oil for low temperature environment is marked with SAEOW, SAEL5W, SAE20V, etc., the W after SAE indicates winter (winter), and the number also indicates viscosity, and the smaller the number, the lower the viscosity. This type of engine oil is used for low temperatures in winter, the lower the viscosity of the oil, the greater the starting speed of the engine; At the same time, the lower the pour point of the oil, the easier it is for the oil to be pumped, which can reach the lubrication part more quickly and shorten the dry friction time of the parts.

The multi-grade viscosity type engine oil is marked with SAE5W-30, SAEL5W-40, $ae 20W-50, etc. The first half of the bars indicates the winter low-temperature viscosity properties that the marking oil complies with, and the second half of the bars indicates the summer high-temperature viscosity properties.

The lower the number before W, the better the fluidity of the lubricant at low temperatures, and the easier it is for the car to start cold. The higher the number after w, the better the viscosity of the oil in a high temperature environment, and the stronger the oil film is generated.