How long is the interval between changing gear oil in a vehicle? Does anyone know?

Generally speaking, the gear oil should be changed every 60,000 kilometers, which can also effectively improve the efficiency of the gear transmission engine power.

The choice of viscosity during oil changeViscosity is the most basic selection factor for gear oil. If the viscosity is selected too much, the friction surface will be overheated, and unnecessary power loss will also be caused.

If the viscosity is too small, the oil will be thrown off from the tooth surface due to the centrifugal force, which will easily cause oil seal leakage, and may form lean oil lubrication on the gear surface, which will increase wear and even produce sintering, so it is very important to choose the appropriate viscosity.

There are two main types of gear oil nowadays, one is synthetic oil and the other is mineral oil.

If the synthetic oil used has a very long life, it does not need to be replaced within 200,000 kilometers, while mineral oil is different, mineral oil needs 2-3 years or 4-60,000 kilometers to replace.

Different types of gearboxes and transaxles use different viscosity designations, with a viscosity of 75W-90 for small passenger cars and 80W-90 for large trucks and transaxles.

Gear oil should have good anti-wear, load resistance and suitable viscosity, in addition, it should also have good thermal oxidation stability, foam resistance, water separation performance and rust resistance.

Generally according to the mileage replacement, 20,000 kilometers is almost the need to change, Kunlun suitable for imported, domestic cargo, passenger commercial vehicles, as well as a variety of armored vehicles, tanks, railway locomotives of the hypoid gear drive axle, drive shaft lubrication, should be a wide range.

Gear oil is in the gearbox of the car, under long-term high-speed operation, the composition of the oil will change, resulting in deterioration, and into impurities, can not complete the task of lubrication and cooling, so it is necessary to replace the gear oil regularly. Generally, when the car travels 20,000 kilometers, or the repair personnel inspect and need to be replaced, the gear oil needs to be replaced. If you don't change the gear oil regularly, you can't see anything in a short time, but it will seriously affect the life of the gearbox, and once the gearbox is damaged, the cost will be very large (more than 10,000 yuan).

It must be replaced, otherwise it will have a great impact on the gearbox. Kunlun gear oil has excellent extreme pressure wear resistance and thermal oxidation stability, which protects the heavy truck from toothing, gluing and peeling of gears during the driving process of low-speed heavy load (climbing) and high-speed impact (sudden increase or decrease of throttle at high speed) and high-torque harsh working conditions, which can more effectively prevent the formation of sludge and sediment and keep the tooth surface clean.

Generally speaking, gear oil should be changed every 2-40,000 km.

Generally speaking, the replacement cycle of gear oil is the same as the calculation method of the maintenance cycle of the vehicle, mainly based on the mileage or use time, if the vehicle manual clearly gives these two indicators, it must be implemented first-come; If there is no such indicator in the vehicle manual or the oil change time is not clearly marked, the manual transmission oil can generally be changed according to the mileage of 2-40,000 kilometers.

Gear oil precautions.

1. Under the condition of ensuring lubrication, try to use gear oil with appropriate viscosity, and do not use gear oil with high viscosity, otherwise it will cause waste and increase fuel consumption.

2. Choose the viscosity grade according to the seasonal temperature. The maximum temperature at which the low viscosity of a gear reaches its low temperature determines the minimum temperature to which it is applied. Therefore, the viscosity grade of gear oil is generally selected according to the temperature conditions of different regions or seasons.

When the temperature is high, choose gear oil with high viscosity; Conversely, when the temperature is low, choose a gear oil with low viscosity.

There are two types of gear oil change time:

1. The use of synthetic oil does not need to be replaced within 200,000 kilometers.

2. Using mineral oil, it needs to be replaced from 4 to 60,000 kilometers. Gear oil mainly refers to the lubricating oil of the transmission and rear axle, which mainly lubricates the gears and bearings, prevents wear and corrosion, and helps the gears dissipate heat.

The hazards of the transmission oil not being changed for a long time:

1. Abnormal wear and serious oil deterioration of the transmission.

2. Aging and decaying of transmission oil, increasing automobile fuel consumption and shortening the service life of the transmission.

3. The oil in the transmission is granulated, blocking the oil circuit, straining the valve body, and affecting the system oil pressure and power transmission.

4. Make the transmission slow to react, shift impact and other phenomena.

Precautions for the use of gear oil:

1. The use of gear oil is contraindicated. When using, it is strictly forbidden to add diesel fuel to the gear oil for dilution, and do not bake the rear axle and transmission, because this will affect the winter start-up, so as to avoid serious deterioration of the gear oil. If this happens, you should switch to a low-viscosity multigrade gear oil.

2. Add and change in time. During the driving of the vehicle, due to local leakage, evaporation or extrusion, a part of the gear oil of each assembly and component will be consumed, and it will deteriorate after long-term use, so it should be added in time. The added gear oil must meet the requirements of the original car.

3. Change the oil in time. Change the oil to a new one according to the specified oil change index. If an oil analyzer is not available, the oil can be changed within a specified time limit.

The manual gearbox does not need to be changed for a long time, and it is no problem to use more than 100,000. 7-8 years lifespan. You can wait until when the shift is not smooth in the winter.

What 4-50,000 gear oil is purely a profiteer's fool. Gear oils produced ten years ago can be used for more than ten years, as long as you don't leak or get water. Ten years later, the production process is even more problematic.

The gear oil is the same, it is all hyperbolic gear oil, but the OEM is different. In fact, there are only a few well-known gear oil manufacturers. You use it for 7-8 years, no problem.

The brake fluid should indeed be changed, 5-60,000 kilometers or 4 years. Because it will absorb water on its own. This leads to a decrease in braking efficiency.

Generally speaking, the replacement cycle of gear oil is the same as the calculation method of the maintenance cycle of the vehicle, mainly based on the mileage or use time, if the vehicle manual clearly gives these two indicators, it must be implemented first-come; If there is no such indicator in the vehicle manual or the oil change time is not clearly marked, the manual transmission oil can generally be changed according to the mileage of 2-40,000 kilometers.

However, for the replacement of transmission oil, there are some owners who think that there is no need to replace or have not developed the awareness of changing the transmission oil in time, so there is a great risk, some gearbox damage such as friction plate ablation, blade jamming, etc., is mainly caused by the loss of oil in the gearbox or the deterioration of the oil. In addition, if the oil is replaced with inferior quality or not changed according to the model, the life of the transmission will be reduced.

Tips for choosing gear oil for automobiles.

Don't make the mistake of thinking that high viscosity gear oils have good lubricating properties. The use of gear oils with too high viscosity will significantly increase fuel consumption, especially for high-speed cars, so suitable multigrade gear oils should be used whenever possible. On the premise of ensuring lubrication conditions, gear oils with low viscosity levels and multiple grades should be selected.

The quality of the transmission fluid can be judged by the color of the transmission oil. The oil color of regular transmission oil is light and transparent, there are no impurities and suspended solids, and the fluidity is good when shaking. Counterfeit transmission fluid has a lot of small bubbles when it shakes and has a lot of impurity particles.

Looking at the viscosity of the transmission oil, the ** oil is relatively thick, and it will be filamentous when you dip it with your hands, while the inferior oil is relatively sparse. Smell the transmission oil, a good oil will have a burnt smell, while a bad oil will have a pungent smell and a more unpleasant smell.

How often should car transmission fluid be changed? If this problem is calculated by kilometers, it is 4-60,000 kilometers, of course, this also depends on the model, but like some kilometers run less than the number of years that have not been changed, it is recommended to change it.

Gear oil is mainly divided into synthetic oil and mineral oil, synthetic oil is generally replaced after 200,000 kilometers, while mineral oil is different, mineral oil needs to be replaced at 4-60,000 kilometers.

How often is the best time to change the gear oil in the car? The old driver told the truth this time.

Hello, the gear oil of the car should be decided according to the situation you use and the number of kilometers you run, you change it once not to say that it is changed regularly, it is faster according to your use.

cap, it's gear oil, not transmission oil!!

Manual transmission is 60,000 in three years, 40,000 in two years for automatic transmission and 40,000 in four speeds, and there are many maintenance-free six-speed maintenance in three years, and it is best to change it once in three years! [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Automobile gear oil should be replaced in about 40,000 kilometers, and the specific replacement cycle should be subject to the manufacturer's instruction manual, after all, the service life of vehicle gear oil is related to the model, oil quality, use conditions, driving habits and other aspects. Gear oil is what we often call transmission oil, transmission oil can be divided into manual transmission oil and automatic transmission oil, manual transmission oil is often called gear oil. The active transmission oil uses transmission oil, which cannot be replaced by ordinary gear oil.

The gear oil of the gearbox needs to be replaced once for 60,000 kilometers to ensure the smoothness of the gearbox and shifting. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello. 60,000 kilometers for one change. I hope my answer is helpful to you. Have a great day! [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, 40,000 kilometers to replace [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

As a general rule, gear oil should be changed every 60,000 km.

This can also effectively improve the transmission of engine work by gears.

rate of efficiency. The choice of viscosity when changing the oilViscosity is the most basic gear oil.

Selection factors. If the viscosity is chosen too much, it will cause friction.

Overheating of the surface can also cause unnecessary power loss, such as:

The viscosity of the fruit is selected too small, due to the action of centrifugal force will be the oil.

Throwing off from the tooth surface is easy to cause oil leakage from the oil seal, which may be in.

Lean oil lubrication is formed on the gear surface, which increases wear.

Sintering may even occur, so choose a suitable adhesive.

Degree is very important.

In order to prevent the tooth surface from rubbing caused by high stress when the gear is in contact.

Wounds, peeling, and sintering must be selected with good anti-wear poles.

Pressure performance of gear oil to maintain proper load-bearing capacity.

The gear oil of automobiles and cars should be replaced at about 40,000 kilometers, and the specific replacement cycle is subject to the manufacturer's instructions. After all, the service life of vehicle gear oil is related to many aspects such as vehicle model, oil quality, use conditions, driving habits and so on.

Gear oil mainly refers to the lubricating oil of the gearbox and rear axle. It differs from motor oil in terms of conditions of use, its own composition and its performance. Gear oil mainly lubricates gears and bearings, prevents wear and corrosion, and helps dissipate heat from gears.

Automotive gear oil is used in gear transmission mechanisms such as automobile steering gears, transmissions, and drive axles. Due to the high surface pressure during gear transmission, gear oil plays an important role in lubrication, anti-wear, cooling, heat dissipation, anti-corrosion and rust prevention, washing and reducing the impact and noise of teeth.

Gear oils typically require the following six basic properties:

1.Suitable viscosity and good viscosity temperature properties. Viscosity is the most basic property of gear oil. The viscosity is high, the lubricating oil film is thick, and the load resistance is relatively large.

2.Sufficient extreme pressure and wear resistance are the most important properties and characteristics of gear oils. It is the ability to prevent tooth surfaces from being abrased, scratched and glued during movement.

Abrasion and load resistance. Because the gear load is generally above 490MPa, and the double-curved tooth surface load is as high as 2942MPa, in order to prevent the tooth surface wear and abrasion caused by the rupture of the oil film, extreme pressure anti-wear agent is generally added to the gear oil, and the additives commonly used in the past are sulfur-chlorine, sulfur-phosphorus-chlorine, sulfur-chlorine-phosphorus-zinc, sulfur-lead, sulfur-phosphorus-lead, etc. Sulfur or sulfur nitrogen additives are commonly used.

3.Good demulsibility. Emulsion and deterioration of gear oil in water can seriously affect the formation of lubricating oil film and cause wear.

4. Good oxidation stability and thermal stability, good thermal oxidation stability to ensure the life of the oil chain.

5.The foam resistance is good, and the foam generated will not disappear soon, which will affect the formation of the oil film at the gear mesh, and the entrainment of the foam will reduce the actual working oil volume and affect the heat dissipation.

6.Good rust and corrosion resistance. Corrosion and rust not only destroy the geometry and lubrication state of the gear, but the products of corrosion and rust can further lead to the deterioration of the gear oil, creating a vicious cycle.

The gear should also have other properties, such as adhesion, shear stability, etc. At present, the extreme pressure additives used in most of China's medium and heavy-duty industrial gear oils are mainly sulfur and phosphorus, which are equivalent to the quality level of similar foreign products.

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