What is the difference between oil 5w30 and 5w40 and which oil has better dynamic performance?

Sutar is suitable for 40 viscosities. The power output of semi-synthetic oil is not large.

The GT Magic Red oil that I drive is currently maintained, and the power output is very strong, the response is also fast, and the car changes gears and accelerates more smoothly.

Liquid molybdenum is also added to the oil, and the mechanical sound is very small, even six or seven thousand revolutions, and the head of the machine cannot hear any noise.

There are many different grades of engine oil, and different labels indicate different oil properties. Take 5W-30 as an example, 5 means that the temperature applicable to the oil is above minus 25 degrees, if it is 10 means above minus 20 degrees, the smaller the value in front of W, the better the low temperature fluidity. In other words, it is more suitable for northern winter, and has good cold start performance.

W means winter, and the applicable temperature range is relatively large, which means that the engine oil can be used in all seasons.

The value after 5w-30 is the viscosity index, which means that the viscosity index of the oil is 30 in the working state of 100 degrees Celsius, the higher the number, the higher the viscosity, the better the protection of the engine at high temperatures. However, depending on the driving situation and the type of vehicle, it should be filled with the appropriate grade of oil.

The 5W-30 and 5W-40 oils are both general purpose oils, so they can be used in any season and can also protect the engine. About the meaning of w refers to winter. Then as long as the number in front of w is less, it means that its viscosity is smaller, which means that as long as the fluidity of this engine oil is better at low temperature, it is more suitable for this oil in the season when the temperature is relatively low.

Then for this kind of institution, it is especially suitable for the northeast side. Then the number after W represents the viscosity at 100, if the number is larger, the viscosity is good, for example, the viscosity of 5W-40 oil is larger than that of 5W-30 oil, which can also indirectly indicate that the better the protection performance at high temperatures.

There is a high viscosity of the oil on the power of the car. But low temperature protection is better. Hope.

The main difference is that 5W-30, the fluidity is relatively good, and the problem of reducing fuel consumption is faster and better heat dissipation of the engine, and at the same time, for some older cars, the use of 5W-30 will cause the engine noise to be slightly larger, and there are some strict requirements, the use of 5W-40 engine, and the choice to use 5W-30 will occur larger than the normal amount of oil, in the high temperature state, 5W-40 will have better oil stability.

It must be more expensive and better, and the power output is better.

5w40 is better, 5w w-30 and so on in the engine oil indicates the viscosity grade of the engine oil, which is the SAE grade. "W" means winter. The best way to improve the power before w is to change the *** fully synthetic engine oil.

The difference between 5w30 and 5w40 is the difference in viscosity. Volkswagen model 40.

The power performance is better than that of the three types of fully synthetic engine oils, the throttle is smooth, the power is fast, the gear shift is sensitive, and it also takes into account the aspects of cleanliness and silence. The anti-recession ability of imported PAO is particularly good, and the recession can only be felt after running 10,000 kilometers, and the maintenance mileage can reach 15,000 kilometers.

Benefits of motor oil:

1. Lubricity. The ability of engine oil to reduce friction, slow down wear and prevent metal sintering under various conditions is called engine lubricity. The viscosity of engine oil is an important indicator of lubricity.

2. Low temperature operability. From the engine oil aspect, the engine oil is easy to start and reliable to supply oil at low temperatures, which is called the low-temperature operability of engine oil.

The difference between these two oils is that the viscosity is different, I have not used these two types of engine oil, I use the best 0W engine oil, the German GT engine oil 0W40 has been used in the family car, it contains liquid molybdenum, outstanding wear resistance, the throttle is particularly light to press, and the acceleration is particularly fast.

The effect of 40 oil is better than that of 30 at high temperatures, and the German engine is running at a high temperature, so the effect of using 40 will be a little better. However, if you want to improve the power, the best is 0W40 imported PAO engine oil, I use the German GT Magic Red, there is no problem with running 10,000 kilometers, and the power is particularly excellent, the sound is low and powerful when running at high speed, and it is particularly cool to use.

How to choose car engine oil? What do the numbers and letters on the oil mean, and what is the difference between 5w30 and 5w40? Let's take a look.

2. For some older cars, 5w-30 will cause the engine noise to be slightly louder;

3. Some engines that strictly require the use of 5W-40 will have greater fuel consumption than normal if they choose to use 5W-30.

4. Under high temperature, 5W-40 will have better oil stability.

Hello engine oil 5w-30 and 5w-40 viscosity is not the same, the applicable models are different, each car engine manufacturer guidance oil is not the same, some require 5w-30 oil, some to use 5w-40 oil, it is recommended to choose the oil according to the manufacturer's guidance of the oil standard, I personally recommend that the new car within 50,000 kilometers with 5w-30 oil, more than 50,000 kilometers after the car with 5w-40 oil.

5W40 and 5W30 are oil models, which have nothing to do with the quality of the oil.

The number in front of w indicates the low temperature fluidity of the oil, the lower the number, the better the low temperature fluidity. The number after w indicates the high temperature (normal operating temperature of the engine) viscosity of the oil, the higher the number, the higher the viscosity.

Your car is the engine, and it's best to use fully synthetic oil. Normally, 5w30 fully synthetic motor oil is completely fine.

First of all, the oil power experience of 5w40 is better. Secondly, the differences between the two are as follows:

1. Different applicable temperatures.

1) 5w30: above minus 25 degrees to below zero 15 degrees.

2) 5w40: above minus 25 degrees to below zero 35 degrees.

2. Different oil levels.

1) 5w30: lower than sn oil.

2) 5w40: SN level, SN index is required to be no more than 35 mg; Piston Average Sediment Fraction: SN requires no less than 4 points.

3. Different fluidity.

1) 5w30: indicates that the kinematic viscosity at 100°C is between.

2) 5w40: indicates that the kinematic viscosity at 100°C is between. If it is helpful to you, I hope you can adopt it, thank you.

The following 30 and 40 refer to the viscosity of the oil, generally speaking, it is suitable to use higher viscosity oil in summer, and lower viscosity oil should be used in winter, so as to ensure normal operation, so it is not just a simple look at the number, you can always use a certain oil.

Engine oil 5w30 and 5w40 are all seasons general oil for motor vehicles, and there is no good or bad distinction between them, but the difference is that the high temperature viscosity of the engine oil is different at 100 degrees.

The high temperature viscosity of engine oil 5w30 is small, the fluidity will be better, the fuel consumption can be reduced, and the engine heat dissipation will be faster.

The engine oil 5w40 has high temperature relative viscosity and relatively poor fluidity, but it has little fluctuation for the role of engine oil, and the operation of motor vehicles is more stable.

The viscosity of the two is not the same, and 5w40 can be used in areas with low dimensions. 5w30 is used in areas with medium latitudes.

5w30 and 5w40, the use temperature of these two types of engine oil is the same, both are minus 30 degrees, the difference is that their viscosity is not the same, one is three years and one is four years, you can choose according to your own model, if the car is older, it is recommended to use four zero, if you are a Japanese car, it is recommended to use three zero oil.

The difference between the two types of engine oil is the wear resistance, 30 is more suitable for vehicles with less vehicle kilometers, 40 recommends more than 100,000 vehicle kilometers, generally speaking, it is recommended to use the original engine oil, if there is no way to replace the original engine oil, it is best to decide what grade of engine oil to use according to the kilometers of your vehicle.

For these two types of engine oil, it depends on what engine is used to determine whether it is good or not. If you talk about these two types of engine oil separately, as long as it is a fully synthetic engine oil, this one is better. 5W-40 engine oil for this German car engine kilometers are relatively large, the use of this oil is relatively high, suitable for this engine kilometers of large kilometers, practical.

This oil of 5W-30 is suitable for German engines with relatively small kilometers, or Japanese engines or American engines.

5w40 engine oil is good.

5w30 and 5w40 are two different types of engine oils, 5w-30, 100° dynamic viscosity in, high temperature high shear viscosity is, 5w-40, 100° dynamic viscosity, high temperature high shear viscosity. That is to say, 5W-40 is larger in viscosity, and the engine is better protected by high-speed operation, and the noise is lower.

Introduction to motor oil

The full name of the engine oil is: "Engine Lubricants". As the name suggests, the role of engine oil is to lubricate and reduce friction, assist cooling and cooling, seal and leak prevention, rust and corrosion prevention, shock absorption and cushioning for the engine.

Engine oil is composed 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.

The types of engine oil are mineral oil, semi-synthetic engine oil, and fully synthetic engine oil. Mineral oil is the most commonly used lubricant in the market. It is the process of fractionating useful substances, such as gasoline and aviation oil, in the petroleum refining process, and then processing and extracting the remaining base oil.

Essentially, it uses the worst of the worst ingredients.

Mineral oil ** is relatively low, the service life and lubricity are not as good as synthetic oil, and at the same time, it also has a greater pollution to the environment, and the mineral oil can not completely remove the magazines contained in the refining process, because the flow point is high, and it is not suitable for use under extreme conditions in low temperature areas.

Semi-synthetic engine oil is the use of semi-synthetic base oil, is the basis of mineral oil through hydrofission technology purification products, it is made of mineral oil, fully synthetic oil in a ratio of 4:6 mixture, the purity of semi-synthetic oil is very close to full synthetic oil, but its cost is slightly higher than mineral oil, is an ideal transition product from mineral oil to synthetic oil.

Fully synthetic motor oil is the highest grade of motor oil. It is ethylene and propylene dispersed from gas or natural gas in **, and then refined into a lubricating liquid composed of macromolecules through complex chemical reactions such as polymerization and catalysis.

Choose 5w40 oil power experience is better.

1. Different fluidity: Compared with fluidity, 5W-30 has relatively better fluidity than 5W40, which is more capable of reducing fuel consumption and making the engine dissipate heat faster and better. At the same time, for some older cars, the use of 5W-30 will cause the engine noise to be slightly larger, and some strictly require the use of 5W-40 engines and choose to use 5W-30 will cause greater fuel consumption than normal.

At high temperatures, 5W-40 will have better oil stability.

2. Cold resistance is different: W represents the meaning of winter, the number in front of W represents cold resistance, the smaller the number, the better the cold resistance, in the winter in the north, it is generally recommended to use 0w or 5w oil, the number behind w represents the viscosity of the oil at 100 degrees Celsius, the larger the number, the greater the viscosity of the oil. The latter figures mainly refer to the index of high temperature resistance of engine oil, and the higher the value, the better the protection performance of the engine oil at high temperatures.

3. The stability is different: the engine noise of the oil product using 5w-30 is slightly louder than that of the oil product of 5w-40. For engines that strictly require the use of 5W-40, if 5W-30 is used, there is a possibility of greater oil consumption than normal, and 5W-40 has better oil stability than 5W-30 in the particularly high engine state.

Methods of oil selection:

It is best to use multi-viscosity lubricating oil when choosing engine oil, lubricating oil (also known as multi-grade lubricating oil) has the nature of light oil at low temperature, and has the nature of heavy oil at high temperature, and in the case of recommending the use of multi-grade oil, a multi-grade oil can replace a variety of single-grade oil.

Although multigrade oils are suitable for extremely cold and warm seasons and heavy-duty engine oils, especially those that do not have difficulty starting in cold weather, a single viscosity lubricant is often recommended to facilitate engine lubrication and extend engine life.

The difference between 5w30 and 5w40 oil is viscosity, which has nothing to do with the region. Focus with 5w30 on the line, the oil label is selected mainly to see the quality of the oil, I originally used the original 5w30 engine oil noise is also large, changed the magic red oil 0w30, pao base oil cleaning ability is good, there will be no sludge generation, the start speed is very smooth.