Does the quality of the transmission gear oil have an impact on the differential?

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The function of the transmission differential is to transmit the power of the transmission to the left and right wheels, so that the left and right wheels have different speeds when cornering. For 4WD vehicles, the differential also allows the front and rear wheels to rotate at different speeds or at the same speed.

The symptoms of transmission differential damage are as follows: the differential is basically a pure mechanical structure, when the differential is broken, the start or acceleration and deceleration can feel the more obvious impact, and can hear the abnormal sound. The vehicle has a hard time turning when cornering, there is a lot of resistance and the tires show more severe wear.

If the differential is completely damaged, the vehicle is largely immobile.

The differential device in the differential only moves when the vehicle is cornering and does not move when driving in a straight line. If the differential does not work when the vehicle is turning, the wheels on the outside of the vehicle can only turn in a slippery form, resulting in tire wear and difficulty turning.

For the average family front-wheel drive car, the differential and gearbox combination has become an overall layout on the front axle; The rear drive differential is on the rear axle; Four-wheel drive differentials are found on the front and rear axles, as well as in the transfer case. Four-wheel drive cars usually have differentials with a differential lock that allows the front and rear wheels, or two front wheels, two rear wheels to get the same driving force. This is because when one of the wheels of the vehicle is suspended or loses grip, the differential transfers all the power to the idler wheel, while the other wheel that still has grip has no power and the vehicle cannot get out of the trap.

The function of the differential lock is to lock the differential mechanism of the differential, so that there is no relative movement, so that the wheels on both sides can only rotate at the same speed. At this point, the power of the gearbox is evenly distributed to the left and right wheels, allowing the vehicle to get out of the trap. If the differential bearing is broken, then the car will hum while driving, and the rhythm of this abnormal noise is basically stable.

The next thing to do is lift the car, shake the wheels a bit, and there will be a slight gap. In fact, it is normal for the bearing of the differential to be damaged, after all, under long-term high load, wear is inevitable, but it is only a matter of severity. So if it is really a bearing damage, it is no problem to drive a distance, but for safety, it is best to go to a 4S shop for repair as soon as possible.

After the gearbox of the car is broken, there will be a phenomenon of slipping, and the inner wheels also have the problem of turning, and the problem of sliding will also occur when driving in a straight line, which will cause serious traffic obstacles and should be repaired in time.

When accelerating and decelerating, you will feel a particularly obvious frustration, a particularly obvious noise, a particularly large drag, a tire worn, and a transmission that leaks.

There are sounds between the movements of the car, the tires are badly worn, the car is not able to turn well, and the car will jam, all of these situations will occur.

There will be vibrations when driving, there will also be instability, and pulley situations may occur when turning.

Car differential oil and transmission oil are the same:

1. The differential is one of the parts in the gearbox, the oil added to the gearbox of the manual transmission is called gear oil, and the automatic transmission manual is called the automatic transmission oil, the automatic transmission oil is higher than the gear oil level, and it is backward compatible, and the automatic transmission oil can be added to the manual gear, but the gear oil cannot be added to the automatic box;

2. Automatic transmission oil is called ATF automatic transmission oil, which is specially used for automatic transmission oil, and the early automatic transmission did not have special oil, but replaced it with engine oil;

3. Due to the great difference in working conditions and technical requirements, the engine oil as the method of automatic transmission fluid was quickly eliminated, and the special oil used for automatic transmission today is not only the transmission oil of the torque converter, but also the lubricating oil of the planetary gear structure and the hydraulic oil of the shift device.

The differential oil needs to be replaced every three years or 60,000 kilometers, which need to be maintained and replaced on time, and it is the best timely maintenance for the vehicle to ensure stable, comfortable and safe driving.

The role of differential oil, there is a differential on the rear wheel of the motor vehicle, and it is the lubricating oil. It plays the role of lubrication and protection of the differential. The differential is the difference in speed that balances when cornering.

So this device is not very important. If it doesn't work when cornering, it will have serious consequences, such as the car rolling over or the car being unstable. Because the center of gravity of the car changes when turning, this device is very important.

Some people also ask me if the differential lock is a differential, in fact, these two are different, the differential lock is popularly said that when the wheel encounters resistance, the differential lock can help it get out of trouble. For example, if two wheels fall into something, the other two can also bring those two wheels out normally.

Transmission oil and gear oil are not the same. Transmission oil includes manual transmission oil and automatic transmission oil, manual transmission oil is collectively referred to as gear oil, but the automatic transmission is used at a higher level, also called transmission oil, ordinary gear oil can not be used in automatic transmission, which is also the difference between automatic transmission oil and gear oil in transmission oil.

Gear oil is mainly petroleum lubricating oil base oil or synthetic lubricating oil, and is an important lubricating oil prepared by adding extreme pressure anti-wear agent and oily agent. It is used in various gear transmission devices to prevent tooth surface wear, abrasion, sintering, etc., prolong its service life, and improve the efficiency of power transmission. Gear oil should have good anti-wear, load-resistant properties and suitable viscosity.

In addition, it should also have good thermal oxidation stability, foam resistance, water separation performance and rust prevention performance.

When the car is driven continuously under high loads, the gearbox and differential.

The temperature of the gear oil can sometimes exceed 120 °C, and the lubrication performance of the differential oil decreases under high temperature conditions, which can cause the gear oil to deteriorate.

If you do not pay attention to maintenance, the friction of the gears in the differential structure will occur after the performance of the differential oil deteriorates.

If it increases, it will increase the fuel consumption of the vehicle, and it will damage the differential and differential lock for a long time.

and other devices. Differential oil is a lubricating oil for the lubrication of the rear wheel differential of rear-wheel drive vehicles, the replacement cycle of differential oil is generally 8-100,000 kilometers, and the less running can be replaced once every 3-4 years.

The differential oil used to be 60,000 kilometers, but now it is changed to 150,000 kilometers. If it is not saved, it will not have much impact. [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

The difference between good and bad differential oil is different fluidity and lubrication performance. Regularly change the transmission oil in order to better protect the transmission, but most car owners do not know how to properly maintain the transmission oil. It is often not until it is time to repair it that it turns out that it is more expensive to repair than to repair the engine, and when it is replaced when the oil deteriorates, it is likely that the entire transmission will be replaced.

The role of differential oilDifferential oil is a lubricating oil developed for the lubrication of rear-wheel drive vehicle rear wheel differentials, which can effectively protect the differential. When the car is driving continuously under high load, the temperature of the gearbox and differential gear oil sometimes exceeds 120 degrees Celsius, and the lubrication performance of the differential oil decreases under high temperature conditions, resulting in the deterioration of the gear oil.

The differential can make the inner and outer wheels produce a speed difference, only in this way can the car turn smoothly, when turning, the wheel speed of the inner and outer sides of the car is different, the wheel on the inside of the curve goes less when turning, and the wheel on the outside of the curve goes more, so the wheels on both sides of the coaxial are subject to speed difference, if the wheel speed on both sides of the coaxle is the same, the tires of the car will have some unnecessary wear.

If the differential oil is not replaced, after its performance declines, the gear friction in the differential structure increases, which will increase the fuel consumption of the vehicle, damage the differential, differential lock and other devices for a long time, and will affect the driving quality.

Differential oil is the lubrication of the rear axle gear transmission mechanism, also known as tail tooth oil, gear oil, the main function is lubrication, cooling, the axis of the gear is different from each other and the tooth shape, the contact stress and relative slip speed of the meshing part of the tooth surface are very different, so it is required to use the same type and variety of gear oil that is not the front of the cong sun.

In the hot summer, the car will continue to drive under high load, and the temperature of the transmission and differential gear oil will sometimes even exceed 120, and the gear oil of Yinhui Chain will deteriorate. In addition, automobile grease is very easy to lose at high temperatures, so that its lubrication efficiency is reduced, and it is easy to burn out gears and bearings in serious cases.

Differential oil is somewhat similar to engine oil in terms of composition. In addition to lubrication, anti-wear, and cooling, differential oil has better thermal stability than engine oil. At high speeds, the temperature of the lubricating oil in the differential can be very high, far exceeding the temperature of the oil in the engine.

In this case, the high-temperature viscosity characteristics of differential lubricants are particularly important. Differential oil, as a lubricant, also has a corresponding viscosity grade. The choice of differential oil depends on the latitude, whether it is in the south or the north, and the maximum load of the model itself.

Photo by Gu Zheng Huifan) @2019

The function of differential gear oil is to prevent tooth surface wear, abrasion, sintering, etc., prolong its service life, improve the efficiency of transmission power, and ensure normal driving performance such as cornering.

Four oils: 1. Engine lubricating oil.

2. Gearbox gear oil.

3. Differential gear oil.

4. Automobile fuel (diesel) engine lubricating oil We start with the most familiar engine lubricating oil, engine oil is mainly divided into diesel engine lubricating oil and gasoline engine lubricating oil, most of the commercial vehicles are diesel engine lubricating oil, the diesel engine lubricating oil at this stage is divided into CC, CD, CF, CH, CI, CL these 6 grades, first of all, CC, CD these two levels of diesel engine lubricating oil have been canceled.

Manual transmission gear oilAt present, most of the commercial vehicle gearboxes in China are still based on manual transmissions, and we will first understand the manual transmission gear oil. Domestic gear oil is divided into GL-3 (ordinary Linglun vehicles), GL-4 (medium-load trucks), GL-5 (heavy-duty trucks).

Differential Gear OilDifferential gear oil is not much different from transmission gear oil in terms of use, and the most important thing for differential gear oil is to use heavy duty (GL-

5) Gear lifting oil, viscosity requirements are higher, because the viscosity is too low, it will lead to insufficient lubrication of the differential, the final reducer lubrication, ablation, resulting in excessive wear of the reducer basin and corner teeth, the gap is too large, resulting in obvious abnormal noise, and in serious cases, it will lead to all the internal bearings being burned out, and the entire reducer assembly can only be replaced at that time.

Before understanding diesel, how many grades of diesel do we need to know? How is it divided? Many southern cardholders see most of them are 0 diesel, what does this 0 mean?

The positive wang of diesel means that the freezing point of diesel is 0 degrees, such as -10 diesel is the freezing point of minus 10 degrees, and so on. So diesel doesn't have this similar grade like motor gasoline.

Photo by Pacific Automobile Network Q&A).

Car differential oil and transmission oil are the same:

1. The differential is one of the parts in the gearbox, the oil added to the gearbox of the manual transmission is called gear oil, and the automatic transmission (manual integration) is called automatic transmission oil, the automatic transmission oil is higher than the gear oil level, and it is backward compatible.

2. Automatic transmission oil is called ATF automatic transmission oil, which is specially used for automatic transmission oil, and the early automatic transmission did not have special oil, but replaced it with engine oil;

3. Due to the great difference in working conditions and technical requirements, the engine oil as the method of automatic transmission fluid was quickly eliminated, and the special oil used for automatic transmission today is not only the transmission oil of the torque converter, but also the lubricating oil of the planetary gear structure and the hydraulic oil of the shift device.