Can diesel engine oil 5w40 be used in winter and summer?

AE15W-40, SAE10W-40, "W" means Winter (winter), the more ** the number in front of it, the better the low temperature fluidity of the oil, the lower the ambient temperature available for use, and the better the protection ability of the engine during cold start; The number after the "W" (after a horizontal line) is an indicator of the high temperature resistance of the engine oil, and the higher the value, the better the protection performance of the engine oil at high temperatures.

SAE) applicable ambient temperature (°; c）

5W resistant to external low temperature -30°; c

10W resistant to external low temperature -25°; c

15W resistant to external low temperature -20°; c

20W resistant to external low temperature -15°; c

30. External high temperature resistance 30°; c

40. Resistant to external high temperature 40°; c

50. External high temperature resistance 50°; c

The meaning of SAE designator, SAE is the abbreviation of the American Society of Motor Vehicle Engineers. The label behind SAE indicates the viscosity value of the engine oil, such as: SAE5W-40, where "W" represents winter, and the number in front of "W" represents the flow viscosity at low temperature. The number after the "w" is the viscosity of the oil at 100, the higher the number, the higher the viscosity, the better the protection of the engine at high temperatures.

The flash point is different for different oils because the base oil used is different.

by the Lubricant Additives Division of Jinrunna.

Hello, yes, this level of motor oil can be used in both winter and summer.

Hello, yes, no problem at all.

Hello, now the engine oil is universal for all seasons.

It is not recommended to use it, the oil is a little thin.

5w40 engine oil can be used in summer, engine oil is engine lubricating oil, can lubricate and reduce wear, assist cooling and cooling, seal leakage, rust and corrosion, shock absorption and cushioning of the engine. Motor oil is known as the blood of automobiles and is composed of two parts: base oil and additives. Base oil is the main component of lubricant and determines the basic properties of lubricating oil, and additives can make up for and improve the performance of base oil.

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 degrees to 600 degrees. Under such harsh working conditions, only qualified lubricating oil can reduce the wear of engine parts and prolong the service life. 5w40 engine oil can be used in summer, and you can use a more sticky engine oil in summer, the following is how to choose engine oil:

1. Selection according to the oil grade: API standard classification, starting with S, followed by the letters E, F, G, H, G, L, M, N in the order of the higher the quality grade, the better the performance. 2. Select according to the viscosity of the oil

Usually subtract 35 from the value before W, which is the lowest temperature used for lubricating oil, and the low temperature viscosity grade is divided into 0W, 5W, 10W, 15W, 20W, 25W, the smaller the value, the better the low temperature performance. The "-30" number indicates the viscosity at 100, which is usually divided into The higher the value, the higher the viscosity.

5w - refers to the range of ambient temperature of engine oil [viscosity grade]. -40 to -10 can be used in winter in extremely cold areas. This viscosity of the oil we say - very thin, low temperature fluidity is very good, at the low end temperature, the running resistance is relatively small, easy to start the car, not so strenuous.

At present, high-end engines also use a viscosity of 0W. There is a 10W one, and the viscosity is slightly thicker than the 5W one, and it can also be used in winter in North China that is not too cold. There are no problems with the new engine, it is better to use a 10w or 5w one.

Normally, multi-grade viscosity oil, in addition to the change in the selection of low-temperature viscosity in winter, the high-temperature viscosity does not change with the use of summer, because the temperature of the engine after fully heating up is about the same in winter and summer, are around 90-100, then if the original factory of your car recommends that the viscosity of the engine oil is 5w-40 in winter, you can also use this viscosity oil in summer. Hope.

"w" is an abbreviation for winter, and the higher the number in front of it, the better the fluidity of the oil at low temperatures. The number after the "W" is an indicator of the high temperature resistance of the engine oil, and the higher the value, the better the protection performance of the engine oil at high temperatures.

5W resistant to external low temperature -30°C; 10W resistant to external low temperature -25°C; 15W resistant to external low temperature -20°C. 30 refers to the external high temperature resistance of 30 °C; 40. External high temperature resistance 40°C; 50. Resistant to external high temperature 50°C.

Therefore, the oil 5w40 means that the oil is suitable for an external temperature range of -30°C to 40°C and can be used in winter.

It stands to reason that 5w40 is also considered 40 engine oil, and it is no problem to use it in summer, and the fuel consumption may be lower and will not increase wear.

5w can be as low as -35 degrees, the engine oil is mainly to pick the oil in winter and the high temperature in summer.

It depends on what your engine is like, if it is a general turbocharged engine, you can use 5w30 oil, if it is a high-performance turbocharged engine, you can use 5w40 oil. If it is a naturally aspirated engine, you can use a 20 or 30 viscosity oil.

The W in the oil model number is the abbreviation of winter, which means winter. If there is a letter w in the oil model, it means that the oil can be used normally in winter.

The number in front of W represents the low temperature flow performance of the oil, 0W oil means that the oil can flow at minus 35 degrees Celsius, and 5W means that the oil can flow at minus 30 degrees Celsius. The number after W represents the high temperature viscosity of the oil, and the higher the number, the greater the viscosity.

Precautions for buying engine oil.

When the engine is working, the oil will form a layer of oil film on the surface of each component in the engine, which can reduce the wear of each component in the engine. If the viscosity of the engine oil is too low, the engine oil will not be able to form a stable oil film on the surface of each component during operation, which will aggravate the wear of the engine.

However, the viscosity of the engine oil should not be too high, if the viscosity is too high, it will increase the resistance of the engine during operation, which will make the engine appear to decrease the power and increase the fuel consumption. Therefore, when buying engine oil, you must choose the right viscosity, and the viscosity of the oil cannot be too high or too low.

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Concern. In summer, you can use a more viscous engine oil, and in winter, it is more suitable to use a thinner engine oil, so the 5W-40 model engine oil is more suitable for use in summer. For a motor oil, 5W-40 is its SAE standard viscosity value, this viscosity value first indicates that this oil is a duplicate lubricating oil (now there is basically no single-stage lubricating oil in the civilian field), W stands for Winter winter, and the number in front of W represents the pour point temperature, which is simply the freezing point temperature.

The corresponding freezing point temperature of 5W engine oil is -30, and other common 0W is -35, and 15W is -20. The number after w represents the kinematic viscosity of the oil at 100, and the higher the value, the higher the viscosity. 40 represents the kinematic viscosity at 100 degrees Celsius, and the higher the number, the higher the viscosity of the oil.

The various models are not used to distinguish performance, but to represent the use environment, the minimum operating temperature is -25 degrees, and the oil can still maintain the viscosity of No. 40 oil at 100 degrees Celsius.

0w20 and 5w30 are two completely different types of engine oil, 0w20 is mainly used in Japan, the United States, South Korea and other automobile engine clearance is larger. 5W30 is mainly used for German and other automobile engines with more fine engines. In short, following the manufacturer's guidance is the most scientific.

1. Normal driving in a normal use environment, such as Japanese cars 0w20 is enough. However, if you are driving aggressively, or if you are in a place with a high climate temperature, then it is enough to change to 0w30 or even 0w40, because Japanese cars must ensure that the oil has enough fluidity.

2. The engine of the current German and European cars is more fine, and it can be fully used in winter and summer general engine oil, and the common 5w30 can basically meet the needs, and 5w40 has basically no problem in the Chinese environment.

3. Finally, remember to follow the manufacturer's guidance.

Aconi lubricants answer for you, the difference is not big, often drive at high speed with 40, commute with 30.

In winter, you can use 5w40 engine oil, and 5w40 engine oil can flow normally at minus 30 degrees Celsius. Engine oil is something that every Buqiaoqiao owner needs to come into contact with when using the car. Engine oil is known as the blood of the engine.

If there is no oil in the engine, the engine will not function properly. Engine oil not only plays the role of lubrication in the engine, but also plays the role of cleaning, sealing, buffering, rust prevention and heat dissipation.

When the engine is running, the oil will form an oil film on the surface of each component in the engine, which can prevent friction caused by direct contact between the parts in the engine.

If the components in the engine are in direct contact and cause friction, it will exacerbate the wear of the engine and also cause the engine to overheat.

If the engine continues to run in an overheated state, it can cause serious damage to the engine.

Long-term use of oil can reduce performance, so regular oil changes are required. If it is not replaced for a long time, it will affect the normal operation of the engine.

Replace the oil filter element with each oil change.

The oil filter element is used to filter the oil. Without an oil filter, the oil will get dirty after a period of use.

When you usually use your car, you must maintain your car on time. Timely maintenance can keep the car in good condition all the time, which can effectively extend the service life of the car.

When maintaining, be sure to use ** accessories and oil.

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