Which engine oil is less noisy 5W30 or 5W40?

Unified has 5W, 30 and 5WS even which gene noise bear thinks it is still W40 This noise is small.

When you buy engine oil, you have to buy it, and it's better to buy that toothpaste with a high oil.

In fact, which of the two types of unified engine oil is used? It's all the same noise, it depends on whether your engine is a problem? The sound of the release is not entirely controlled by the oil.

Of course, the first one will be a little better, I've seen it before, and it's true.

Hello, the first thing you have to consider when choosing engine oil is the local climate and temperature, if your local climate temperature is high, then you choose 5w four-zero car oil, its noise will be relatively smaller, because its viscosity is relatively high, if your local temperature is relatively low, it is recommended that you choose 5w three-zero engine oil, because its viscosity is relatively low, easy to enrich on the surface of steel, it will also reduce the noise of the machine, thank you, I hope it can help you.

Compared with the unified engine oil 5w 30 and 5w 40, or the noise of 5w 40 is relatively smaller, in fact, the difference is not very big? Just a tiny difference.

5w30 or 5w40, which oil is less noisy? There is only 5w30 noise here, and the noise of P5w40 is less, because 5w40 is minus 40 degrees, and her rareness is greater.

The noise of the unified engine oil and this engine oil is a little less, I personally think that the former is still very quiet, you can consider it.

Hello, the two engine oils you mentioned, I personally think that 5w30 is quieter.

The noise of using 5w40 oil is louder than that of using 5w30 because 5w40 oil is a bit more viscous.

1. It is not difficult to see from the label that 5w30 and 5w40 adapt to the same minimum temperature, both of which are -30, and have the same low-temperature viscosity performance. Relatively speaking, the high temperature viscosity of 5w30 is smaller than that of 5w40, and the fluidity of low-viscosity oil is better than that of high-viscosity oil, which means that the fluidity of 5w30 is better, and the resistance of the internal components of the engine is smaller, which reduces fuel consumption to a certain extent; However, at high temperatures, 5w40 is more stable and less fluctuating due to its high viscosity and thickerness.

2. The viscosity of the lubricating oil is mostly identified by SAE and other grades, W stands for winter, and the higher the number in front of it, the better the low temperature fluidity of the engine oil, the lower the ambient temperature available for use, and the better the protection ability of the engine during cold startThe 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.

If it is a new car, the noise will increase when using 5w40, so it is better to use 5w30 at this time. On the contrary, if it is an older car, then use 5w40 and use 5w30, which will increase the noise.

Often run long distances, bad road conditions, violent driving vehicles, it is best to use 5w40 with high viscosity, if you choose 5w30 will also significantly increase the wear of engine components, shorten the service life of the engine.

The fluidity of the W30 is relatively good, which can reduce the problem of fuel consumption and make the engine better and faster to dissipate heat. At high temperatures, 5w40 is more recommended because it has better oil stability.

Which is better oil 5w30 or 5w40?Many car owners use it incorrectly.

The high viscosity is good for engine protection, but the sound will become louder at low speeds, and it is good at high speeds. In fact, the main thing is to look at the quality of the engine oil, and there will be no noise if the quality of the engine oil is good. I use Magic Red, which is basically silent when I drive, and the engine doesn't roar at either low or high speeds.

1. High temperature stability is different.

The number after w indicates the kinematic viscosity of the engine oil at 100, and the larger the number, the greater the viscosity, that is, the better and more stable guarantee in the case of high temperatures, that is, the possibility of thinning at high temperatures is smaller. That is, 5w40 is more stable at high temperatures than 5w30.

2. The objects of use are different.

5w40 has a better viscosity than 5w30, so it is more suitable for old cars, 5w30 is more effective in reducing fuel consumption, making the engine faster and better heat dissipation, and at the same time less noise, suitable for new cars or naturally aspirated engines.

The symbol w stands for 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.

Mainly: 0W, 5W, 10W, 15W, 20W, 25W.

0 means -35 or more can be used, 5 means -30 or more can be used, and so on, 25 means -10 or more can be used.

The 5w30 engine is quieter.

Which is better oil 5w30 or 5w40?Many car owners use it incorrectly.

The difference between 5w-40 and 5w-30 is only the difference between the following numbers, 40 can be used in summer temperatures below 40 degrees, and 30 can be used in temperatures below 30 degrees.

Tell you about 5w30 and 5w40 engine oil respectively, 5w30 belongs to the oil with thin oil suitable for summer use, and 5w40 engine oil belongs to the oil is not worried and not dilute the oil is suitable for use in all seasons, the engine oil will not reduce the engine sound of the oil will only play a good role in lubrication.

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.

There is no good or bad with different viscosities, and fully synthetic motor oil is better than semi-synthetic motor oil. Mine is the 2016 version of Forrest, the first year is the original oil 5W30, the power is not slow, the back is changed to a more advanced G T magic Red 0W30, PAO base oil is better than the fully synthetic engine oil, the power is much stronger, the speed is also fast, run 15000 kilometers to change it, the original engine oil to run 5000 kilometers to change.

The number after the w is the viscosity, and I have to use 40 viscosity oil for my Volkswagen car, because the Volkswagen engine has a high operating temperature. The low temperature popularity of the 5W grade oil is not good and the cold start is slow, you want to shorten the start time, just change the oil with the 0w mark, I Langyi are using G T magic red, the car will go in winter, the start is also fast, you can run a 15000 km and then change, save a lot of worry.

Hello, the specific good can not be measured by the grade, this should be determined according to the use environment set by the manufacturer, not to say that the best is suitable for the car, just the old saying only choose the right one not the expensive one.

We all know that engine oil is very important for the engine, but many car owners have a lot of misunderstandings on the issue of changing the engine oil, and if you don't pay attention, it will not be good for the engine.

Adaptation is OK, according to the manufacturer's recommendation in the manual, see the figure below for the meaning of the model.

Which is better oil 5w30 or 5w40?Many car owners use it incorrectly.

The use of engine oil is related to the temperature, 40 in summer and 30 in winter