Automatic transmission fluid - Oil for automatic transmissions.
Automatic transmission fluids are generally recommended to be changed every 40,000 to 60,000 kilometers or every two years . However, the specific replacement time should be determined according to the use of the vehicle and the manufacturer's regulations. If the vehicle often travels under harsh conditions such as high temperature, high speed, heavy load, climbing, etc., the replacement cycle should be shortened; On the contrary, if the driving habits are good and the road conditions are smooth, the oil change cycle can be properly extended.
In addition, transmission oil change cycles may vary from vehicle to vehicle, so it is best to refer to the respective vehicle's maintenance manual to determine the best replacement time. In general, timely replacement of transmission oil is essential to maintain the good operation of the gearbox and extend its service life.
Gravity transmission oil change or circulator change?
From the point of view of economic benefits, the transmission uses gravity oil change. Gravity oil change is usually 400 to 500 yuan, and circulation oil change starts at 1500 yuan. The difference between the two methods: 1. Operation: The operation method of gravity oil change is relatively simple. Most automatic transmissions have an oil level port through which you can drain oil, check the oil level or change the oil. Although the steps are relatively simple, in fact, the oil in the automatic transmission cannot be drained by gravity. The change method of the circulating machine, the consumption of each oil change is much larger, and the process is relatively complex. 2, effect: gravity method can only replace 50% to 60% of the old oil, the rest of the oil in the torque converter and oil cooler can not be changed out. With the circulation method, the oil can be changed more thoroughly.
What is the difference between manual transmission fluid and automatic transmission fluid?
The difference between manual transmission oil and automatic transmission oil is that the role of manual transmission oil is only lubrication, and the main role of automatic transmission oil is that in addition to the lubrication and heat dissipation of planetary gear groups, it also plays the role of hydraulic transmission. The flow of automatic transmission fluid is very good, and the resistance to bubbles is stricter than that of manual transmission fluid.
1. The viscosity of manual transmission oil is higher than that of automatic transmission oil, and it is easier to lubricate the friction surface of manual transmission gear switching. The fluid flow of automatic transmission oil is higher than that of manual transmission oil, which facilitates faster and more stable transmission of engine power. The heat dissipation of the automatic transmission oil is higher than that of the manual transmission oil, avoiding excessive temperature, reducing the lubricating damage of the automatic transmission's moving parts lag, the clutch parts slip, the leakage of the sealing parts, etc.
2, manual transmission oil belongs to the vehicle gear oil, the vehicle gear oil is used for the transmission oil on the car, the front and rear bridge differential machine, the transfer box and other gears lubrication. The selection of automotive gear oil is divided into viscosity and GL grade, the first is viscosity, viscosity must be selected according to the requirements of the car manual. After determining the viscosity, select the appropriate GL grade according to the requirements, for example, the viscosity and APIGL grade of the rear axle gear and transmission gear oil should be selected according to the requirements of the automobile manual, and different situations, lubrication parts, and different loads can not be exchanged randomly according to the actual situation.
3, for the manual transmission machine, many cars use special automotive gear oil, there are also the use of oil, the use of a very small number of ATF oil, but the specific oil should be selected, must comply with the requirements of the car manual can not be used at will as the premise.
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