Analyze why Japanese cars advocate the use of 0W20 engine oil

The reason why Japanese cars advocate the use of 0W20 engine oil is that because of the low viscosity of 0W20 engine oil, it can reduce the resistance to the engine operation and can save fuel.

The difference between 0w20 and 5w20 is the number in front of w. This W is the abbreviation of winter, and the higher the number in front of it, the better the low temperature fluidity of the oil, which means that the lower the ambient temperature available for use, and the better the protection ability of the engine during cold start;

0w20 oil has better low-temperature fluidity than 5w20 oil, can be used in colder areas, and has a better ability to protect the engine during cold starts. The number after 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. 0W20 and 5W20 have the same high temperature resistance, which does not reflect who is better.

Japanese cars are weaker than European and American cars, and 0w-20 oil has low viscosity, good low-temperature fluidity and good power, so it is recommended to use 0w-20 engine oil for Japanese cars without turbocharging and relatively short vehicle age.

w stands for winter (winter), the more ** 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 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.

Because this kind of engine oil is used to drive fuel-saving, the external propaganda method of Japanese cars is fuel-saving, just think about it, the viscosity is small and fuel-saving, and the businessman is like this.

The differences between 0w-20 and 0w-40 are as follows:

The high-temperature fluidity of w40 is worse than that of 0w20. The number after w indicates the viscosity of the oil at 100 degrees Celsius, that is, the high temperature fluidity, the higher the number, the worse the high temperature fluidity.

The kinematic viscosity of the oil is 8-9 at 100 degrees, while the kinematic viscosity of 40 oil is around the same.

1. The basic viscosity and high-temperature shear resistance of 0w20 and 0w40 engine oils are not the same

1. Basic viscosity: 40 is higher than 20, that is to say, at the same temperature, 40 is much worse than 20.

2. High temperature shear resistance: 40 is higher than 20, 40 can provide a higher strength and thicker oil film!

Second, the significance of using low-viscosity engine oil and low-temperature and high-fluidity engine oil for engines:

1. Reduce fuel consumption: Although the engine oil plays a lubricating role in the process of engine operation, the crankshaft of the engine is half soaked in the oil, and the oil viscosity is too large, resulting in excessive crankshaft rotation resistance, and the engine fuel consumption will naturally increase.

2. Reduce engine cold start wear: more than 90% of engine wear occurs in the cold start process, and when the automobile engine lubrication system is established, the wear will be very small.

The oil in the upper part of the engine will flow back to the oil pan when the car is cold, and the upper part is in a state of dry grinding without oil at the moment of starting, especially in the low temperature environment, the base viscosity of the oil is too high, and the greater the pumping pressure of the oil pump, the longer the time it takes for the oil to be pumped to the lubrication part, resulting in the longer the dry grinding time.

Therefore, the use of low-viscosity engine oil, especially in the low temperature environment in the north, the use of low-viscosity engine oil, the use of low-temperature fluidity engine oil, the use of low temperature fluidity engine oil, has a huge effect on reducing engine cold start wear.

Generally speaking, when the temperature is above 40° in extremely high temperature environments, or when the engine is heavily loaded, often full of loads, long walks, mountain driving, and frequent speeding, the viscosity level can be increased by one level. In addition, when the mileage of the car exceeds 100,000 kilometers, if it is found that the oil consumption is too large, this matter can also be appropriately adjusted to a viscosity level.

Hello, I have seen your inquiry, please wait for a moment and answer it for you immediately.

In the case of these two engine oils, it is mainly in the case of this hot car, that is, the viscosity of this oil is not the same when the oil is at high temperature. The viscosity of this 20 oil at this high temperature is lower than that of this oil of 40. That is, after the engine temperature is normal, the viscosity of the engine oil this year is lower than that of this 40.

Questions. I am the tenth generation Accord changed the oil of 0w-40, will it affect the engine.

It will not have an impact on the engine, that is, after replacing this type of oil, the viscosity of this oil is relatively high, the resistance of the engine is relatively large during the operation of the engine, the fuel consumption of the engine will increase, and in the process of acceleration, it is possible to feel that the power of the engine may be slightly weaker than before. Everything else has no impact.

Questions. Okay thank you. You are welcome.

First of all, they are high-grade engine oils, which are suitable for extremely low temperatures of -35 degrees, but the viscosity of the two engine oils is slightly different, 0w20 has low viscosity, small working resistance, and is relatively fuel-efficient and more suitable for winter use, 0w40 is an all-season use type, which can withstand up to 40 degrees of external high temperature, and the viscosity of the engine oil is large, but the effect is extraordinary, and it is relatively suitable for cars for a long time.

W stands for winter, and the number in front of W represents the pour point temperature, which is simply the freezing point temperature. The freezing point temperature corresponding to 0W oil is -35. The designation after the oil has been graded indicates its viscosity specification.

W"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 start, such as 5W represents the external low temperature resistance -30 °C, and the 20W low temperature resistance is -15 °, and the number behind the low temperature represents the kinematic viscosity of the oil at 100, the higher the value, the higher the viscosity. 40 represents 100 degrees Celsius, and the kinematic viscosity standard is between to, which is definitely not what some people say can be used below 40.

0w20 cars are mostly used in Japanese and Korean cars, because Japanese and Korean cars are more self-priming, and the engine clearance is small, so the oil with low viscosity of 20 has good fluidity, which can better protect the operation of the engine, and the self-priming engine temperature is 150, and the high temperature resistance of 20 has been able to meet, and the relative specifications of 20 are fuel-efficient, suitable for commuting.

If you want to have the best experience and protection with 0w20, you can use Germany's GT magic red, which is used in Heilongjiang, compared with Japan's new Nippon Stone 0w20, the cold start is good, and the fuel consumption is about a little lower.

Choice of oil.

1. Choose the right engine oil according to the nature of the engine.

For example, the self-priming engine model can choose mineral oil, which fully meets the engine of the self-priming car. Turbocharging can be semi-synthetic or fully synthetic, which can better protect the engine. Of course, if you are not short of money, you can choose a good synthetic engine oil that will last longer.

2. Select the engine oil according to the characteristics of the engine oil.

Each different brand has different characteristics, such as some engine oil characteristics are clean, some performance is to improve power, some is good start protection, some is to reduce noise and so on. So we can choose according to our preferences.

Yinglang is not suitable for American cars to use 0w20 oil, 0w20 oil is basically used by Japanese cars, the throttle weight is mainly the fluidity of the original engine oil is more general, and the power transmission will be relatively slow. If you want to improve the power, you must at least change the fully synthetic engine oil of Jin Mobil and Jin Jiahu, and if there are requirements, you will have to change to a higher grade of GT engine oil, which is PAO fully synthetic, and the silence and power will be better, but it will be relatively expensive.

Mobil 0w40 can of course run at high speed for a long time, and it will not be good if it runs at high speed for a long time. With the oil change interval, the fully synthetic engine oil can run 10,000 kilometers. The oil change interval is also relatively long.

I also often run high-speed business trips, the engine oil used is G T magic red, running high-speed is also very good, and it is a four-class PAO, more durable, can drive about 15,000 kilometers, very durable.

Mobil should not be considered a four-class base oil in the strict sense, it has four types of additions, mainly three categories. The niche engine oil I use is that this oil is a four-class PAO and there are esters added, the performance is very good, the car can still use this, the overall is good, and like this G T magic red oil has a good anti-attenuation ability, which can be changed for 15,000 kilometers. Long oil change interval and cost-effective.

The original engine oil is basically mineral oil, the oil quality is very poor, the throttle is heavy, the speed is slow, and the phenomenon of insufficient power is normal, my car used to use the original oil when it was the same, but I later Jing friend introduced a really imported from a century-old factory in the Netherlands in Europe and completely legal and compliant engine oil (the name is Ahama), the throttle is obviously lighter, the speed response is very fast, the fuel consumption is also reduced, and the oil change interval can reach 8000 to 10000 kilometers, The original oil used in the previous 4S store had to be replaced after 5,000 kilometers.

In addition, according to the specific driving location of the vehicle and the viscosity and actual quality of the oil, the maintenance personnel will choose the appropriate oil for local use according to experience, and there may be fine-tuning.

The W in the middle of 5W30 is the initial letter of Winter, the number in front of W represents the viscosity of the oil at low temperature, 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 (winter temperature); The number after w represents the viscosity of the oil at high temperatures, and the higher the number in the summer part, the higher the viscosity and the larger the applicable temperature range.

The difference between 0w20 and 5w30 motor oil is that the former is less viscous than the latter, both at low and high temperatures. Judging from the number alone, the former is a pure winter engine oil, and the latter is a winter engine oil commonly used in the north. The former is an uncommon type of motor oil, while the latter is more common.

The oil with low viscosity in winter is not easy to solidify even at low temperatures, making it easy for the vehicle to start, and after starting, the lubricating oil is required to have a slightly higher viscosity to reduce wear. Adding a slightly more viscous oil to the vehicle may take a little bit of oil. Of course, the primary purpose of adding engine oil is to lubricate and protect the parts, prolong the life of the car, and save fuel as a secondary consideration.

In addition, after the vehicle is started, the temperature of the engine is similar in winter and summer, and the size of the number after W does not affect too much, as long as it is selected according to the vehicle manual.

According to my driving experience after changing the oil, as long as it does not affect the start of the vehicle, the viscosity of the oil is still slightly larger, and it feels smoother when driving.

4S changed the type of engine oil, as long as the oil makes the car easy to start in winter, the new oil should have a stronger protective ability.

That's for sure, the label can't be used casually, the oil with 0w20 viscosity is basically a Japanese, American and Korean car, specifically to look good at the model, not all Japan, the United States and South Korea use 0w20 engine oil, my car also uses 0w20 engine oil, the best 0w20 engine oil used is gt magic red, pao's four types of base oil, the comprehensive ability is very good. The difference between different brands of 0w20 engine oil is quite large.

This kind of oil has a low viscosity, which is generally suitable for Japanese cars, and it can only be used after the viscosity of the oil specified by the vehicle is suitable.

Yes, the mu w means winter (winter), and the more the number in front of it, the better the low temperature fluidity of the engine oil, the lower the ambient temperature that can be used, and the better the protection ability of the engine during cold start.

The larger the value, the better the protection performance of the oil at high temperature, that is to say, 0W20 This type of engine mold pin oil has good starting performance at low age, and it is relatively thin at high temperature, which is in line with the requirements of Japanese and Korean car engines for engine oil.

Features of 0w20 engine oil.

The characteristic of 0w20 engine oil is that it is thin at high temperatures, but this does not mean that 0w20 engine oil cannot run at high speeds. Running at high speeds does not mean that the engine is running at high speeds, because the gearbox will keep the engine at low to medium revs through gears and gear ratios to achieve fuel efficiency. At 120 km h on the highway, the rotational speed is usually three or four thousand rpm.

If the displacement is larger, then the speed will be lower.

0W20 is not suitable for use of the situation is intense driving, intense driving will cause the engine speed to be high and low, for the engine will aggravate wear, so to use a higher viscosity such as W40, W50 oil to reduce wear.

0w20 is a model of engine oil, whether it can be used mainly depends on the factory requirements of your car, if your car factory requires the pin to be used 5w20 or 0w20, you can use it, my grandson dou limb new car is 5w20 engine oil, after the warranty for a more high-end g t magic red 0w20 engine oil, pao's fully synthetic engine oil, the performance is much better than ordinary engine oil, and niche brands, use it with confidence.