Motorcycle engine oil 10w 40 or 20w 40 comparison which is better

Motorcycle engine oil 20w-40 is better. The number before w is the fluidity of the oil; The number after w is the viscosity . The lower the number in the front, the better the fluidity at low temperature, and the higher the number at the back, the better the viscosity at high temperature. The smaller the number before w, the more suitable it is for the low temperature in winter, and the higher the number after w, the more suitable it is for the high temperature when running at high speed in summer.

Main advantages: "W" means (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, such as 5W represents the external low temperature resistance of -30 °C, and the low temperature resistance of 20W is -15 °C.

The viscosity of the former oil is lower than that of the latter, and the starting performance of the former is better than that of the latter. W is the abbreviation of winter in English, and there is w to indicate that engine oil is universal in all seasons. The number after w indicates the viscosity of the oil, and the higher the number, the thicker the oil.

The number in front of w indicates the startability of the oil, and the lower the number, the better the startability of the oil.

Motorcycle engine oil is the abbreviation for motorcycle engine lubricant. Motorcycle lubricants usually include motorcycle engine lubricants (referred to as motorcycle engine oil), motorcycle gear oils, motorcycle shock absorber oils, etc.

Splash lubrication has the advantage of simple structure and is conducive to the lightweight of the engine. However, the lubrication effect is often poor, especially for each bearing, and it is difficult to fully lubricate the oil from the outside.

How it works. The engine is a working process that converts the thermal energy of fuel combustion into mechanical energy, which consists of the following four strokes: Intake stroke - sucks the mixture of fuel and air into the cylinder (the diesel engine sucks pure air) Compression stroke - the piston compresses the mixture in the cylinder to increase the pressure and temperature inside the cylinder Power stroke - the piston reaches the upper apex, the spark plug ignition makes the mixture burn, generates high air pressure, and pushes the piston to work Exhaust stroke - exhaust gas from the cylinder after combustion.

To complete four strokes, the piston needs to reciprocate twice and the crankshaft rotates twice, which is called a working cycle.

Function. 1: Lubrication and anti-friction.

There is a fast relative slip between the piston and the cylinder, between the spindle and the pad, and to prevent the parts from wearing out too quickly, an oil film needs to be created between the two sliding surfaces. An oil film of sufficient thickness separates the surface of the relatively sliding part to reduce wear.

2: Cool down.

The oil brings heat back to the oil tank and dissipates it into the air, helping the tank cool the engine.

3: Wash and clean.

Good engine oil can bring carbide, sludge and wear metal particles on the engine parts back to the oil tank through circulation, and wash away the dirt generated on the working surface of the parts through the flow of lubricating oil.

4: Sealed and leak-proof.

The oil creates a seal between the piston ring and the piston to reduce gas leakage and prevent outside contaminants from entering.

5: Anti-rust and anti-corrosion.

Lubricating oil can be adsorbed on the surface of parts and components to prevent water, air, acids and harmful gases from coming into contact with parts.

6: Vibration damping and buffering.

When the pressure at the cylinder port of the engine rises sharply, the load on the piston, piston chips, connecting rod and crankshaft bearing is suddenly exacerbated, and this load is transmitted and lubricated by the bearing, so that the shock load is buffered.

W is the abbreviation of winter English, there is w means that the engine oil is universal in all seasons, the number behind the w indicates the viscosity of the oil, the larger the number, the thicker the oil, the number in front of w indicates the start-up of the oil, the smaller the number, the better the start-up of the oil, of course, 10w-40 is better than 20w-40! Hope mine helps!

In fact, there is not much difference Now there are very few regular codes in the market As long as you remember to use the brand of oil, the unified oil is very good I am a car repairer.

It's not about the brand.

Look at the oil grade.

And there is. Anterior.

10W is the temperature. How many temperatures can be used normally.

40 is viscosity.

Say whatever you want. There are a lot of Mobil fakes.

You can look at Shell.

Or Castrol.

W is the density of the oil, I see you still use the latter in summer, and the former in winter!

In fact, in terms of performance, these two Zhengshi motorcycle oils 10w30 and 10w40 are actually very closeIn terms of style and function, I prefer Zhengshi motorcycle oil SF 10W30, I feel that the cost performance is higher, mainly depends on personal choice, I am also using this, this Zhengshi motorcycle oil SF 10W30 is indeed quite okay.

Motorcycle oil selection.

If the vehicle is in the run-in period, the rider shares that it is recommended to use ordinary minerals, because the run-in period of the scooter is relatively short, and the use of fully synthetic or semi-synthetic will only cause waste, and can not give full play to the actual value of these two types of oil, so try to choose minerals during the run-in period.

10w30 and 10w40 are both all-season oils, but the engine oil 10w30 is more powerful than 10w40.

For the viscosity grade of engine oil, W is the abbreviation of English winter, the number in front of W represents low temperature fluidity, the smaller the number, the smaller its low temperature viscosity, the better the low temperature fluidity, and the lower the applicable minimum temperature; The number after W represents the viscosity of the oil at 100 degrees Celsius, the higher the number, the greater the viscosity and the better the protection at high temperatures.

Introduce. The parameters of the oil refer to the grading and viscosity specifications, and the oil quality level is from SA to SN, and the performance of the oil increases with each letter of the oil quality grade. Take 10w30 as an example, w represents winter, while 10 indicates the viscosity of the oil at low temperatures, and the last 30 number indicates the viscosity index at high temperatures.

There is no absolute good or bad between these two lubricants, the same brand, the same series of lubricants, their difference is only the viscosity is different, according to this characteristic when you choose, you can choose according to the car condition, the local temperature.

The only difference between them is the different viscosity, 5w 30 will be thinner than 10w 40, low temperature fluidity will be better, it is more suitable for winter use, and 10w 40 is relatively better in high temperature lubrication, more resistant to high temperature, not easy to volatile, it is more suitable for summer use.

In addition to the above differences, these two lubricating oils affect their sealing properties because of the difference in viscosity, usually the new car is more suitable for the use of 5w 30, this is because the sealing of the new car is relatively good, plus the viscosity of 5w 30 lubricating oil is thin, it can give full play to the engine performance.

Careful riders will find that if the new car is added with thick viscosity lubricating oil, the engine will have a very strenuous performance, which is mainly due to the increase in the running resistance of the engine, so it will have such a performance.

The 10W 40 is just more suitable for vehicles with a longer service life, its sealing can help the engine improve some power performance, and can also help the engine reduce noise, so it is more suitable for vehicles with a longer service life.

A few W and a few 0 refer to viscosity, not performance. 1.6 meters tall and 1.7 meters tall, which of the two people has a good character? You can't, because height doesn't mean character.

What kind of motorcycles to divide, Wuyang Honda, New Continent Honda motorcycles are suitable for 10w30 engine oil, and most other domestic motorcycles are suitable for 10w40 engine oil.

Motorcycle engine oil 10w-40 and 10w-50 are only different labels, the degree of application to the temperature, especially at high temperature, the degree of application at low temperature is the same, the oil temperature of 10w-50 is more applicable, it is more suitable in high temperature in summer, and it is the same at other times. This label has nothing to do with the quality of the oil, if it is the same brand of oil, but the label is different, according to their temperature range to choose it, if the brand and grade of the oil are not the same, only the comparison of the mark is not very meaningful, the label is mainly related to the appropriate temperature, and has little to do with other aspects. The 10w-50 oil is more suitable in the hot summer, and there is no difference at other times.

The viscosity of these two oils is about the same, but the high temperature resistance of 10w-50 is slightly better, and the other basic differences are not much.

Motorcycle riders must know that when the car reaches a certain number of kilometers, it is necessary to change the oil, generally go to the after-sales service, or repair the shop, or buy the oil to change it yourself, at this time, have you ever thought about what oil to change, the most expensive? Of course, generally in the car repair shop, the boss must want to recommend Guida to everyone, saying that the engine oil is good.

Yes, there is no doubt that expensive is better than cheap, but everyone has thought about what is the right oil for their car. I'll talk about it for you.

If you pay attention to the numbers on the oil bottle, you should be able to see that 10w-40, what does this mean? Motorcycle engine oil is divided into 0w, 5w, 10w, 15w, 20w, 25w from low temperature kinematic viscosity grade, the smaller the value, the better the fluidity at low temperature, it can also be understood as temperature, zero degrees, minus 5 degrees, and so on, the high temperature kinematic viscosity grade is also divided into, and the larger the value, the greater the kinematic viscosity of the engine oil at high temperature.

40 stands for 100 degrees Celsius.

When the kinematic viscosity standard is between to, it is definitely not a statement that can be used below 40. S stands for gasoline engine.

The lower the English letters of engine oil and abcdefgj, the higher the quality level and the better the quality.

And motor oil can be divided into two categories in terms of type, mineral oil.

Synthetic motor oil. The difference between the two is the base oil.

Different. The base oil of mineral oil is extracted from **, and the base oil of synthetic oil is chemically synthesized, compared with mineral oil, synthetic oil has stronger resistance to high temperature oxidation, viscosity change and wear resistance.

The viscosity of synthetic oils is less affected by temperature, so it can flow smoothly in both low and high temperature environments.

, maintain proper viscosity and reduce engine wear. In addition, synthetic oil refining has high purity, and it is not easy to oxidize and decompose to produce sludge and carbon deposits under the continuous high-temperature operation of the engine.

Yes, 10W-40 oil can completely replace 10W-30 oil, as long as the oil grade is above SF level and is suitable for motorcycle use.

Which is better motorcycle oil 10w30 or 10w40? In fact, in terms of performance, these two Zhengshi motorcycle engine oil 10W30 and 10W40 are actually very close, in terms of style and function, I prefer Zhengshi motorcycle oil SF 10W30, I feel that the cost performance is higher, mainly depends on personal choice, I am also using this, this Zhengshi motorcycle oil SF 10W30 is indeed quite okay.

Motorcycle oil selection.

If the vehicle is in the break-in period.

The rider shares that recommend the use of common minerals as the scooter.

The oil change cycle during the run-in period is relatively short, and your use of fully synthetic trace beams or semi-synthetic will only cause waste, and cannot give full play to the actual value of these two Qingfan oils, so try to choose minerals during the run-in period.

In fact, both are good engine oils, 10w30 and 10w40 engine oils have a wide range of applications, but 10w30 is more suitable for use at lower temperatures, and 10w40 is more suitable for use at higher temperatures. If your motorcycle is mostly driven in lower temperatures (such as winter), then 10w30 oil will be a better choice, while if your motorcycle is mostly driven in higher temperatures (such as summer), then 10w40 oil will be a better choice. In addition, take into account the characteristics of your motorcycle, such as petrol and diesel, high-performance power and low-performance power, which will affect the type of oil required for the motorcycle.

Also, take into account the environment in which your motorcycle will be used, as it will also affect the type of oil you choose. So, both are good engine oils, but it is specific to choose a more suitable oil according to your motorcycle and use environment. I hope mine can help you.