Why should I change the transmission oil regularly?
Due to the special driving path of the vehicle, road congestion and poor air quality, it is easy to cause deterioration of transmission oil and viscosity, increase wear between friction plates, increase fuel consumption, automatic transmission oil (atf) transmission hydraulic force and cleaning lubrication Two major functions, if you do not replace the transmission oil for a long time, it will cause the oil particles to increase or produce debris to block the oil circuit, strain the valve body, block the plunger, and even produce a gear shift. Therefore, the transmission oil must be replaced regularly. .
How often does the automatic transmission oil ATF change?
The automatic transmission is a very sophisticated assembly with a complex structure. Changing the transmission oil every 40,000 kilometers is an effective way to make the automatic transmission work normally.
The automatic gearbox is filled with atf oil and its operating temperature is around 140 degrees Celsius. If the atf oil is dirty, the anti-wear effect of the oil will be reduced, which will greatly affect the life of each component. Secondly, the sludge deposit in the dirty oil will increase the wear of the friction plates and the drive system components; in addition, the oil sludge in the dirty oil Carbon will make the oil flow in the valve body tubing unfavorable, affecting the transmission of power from the system's hydraulic pressure, slowing the vehicle's speed, or losing power. In severe cases, it will also cause oil pressure in a certain gear to cause “burningâ€.
Many automatic cars are because the cleaning and oil change are not timely. The automatic transmission will be dismantled and overhauled at around 200,000 kilometers. If you insist on cleaning and maintenance of the automatic transmission at 40,000 kilometers, you can maintain the optimal working status of the automatic transmission for a long time. The use of automatic gearbox cleaning and maintenance equipment for oil change can completely replace the oil, using the equipment's unique flow rate, pressure, can fully clean the sludge deposit in the automatic transmission.
How to replace automatic transmission oil?
Replacement of automatic transmission oil If it is not overhauled (overhaul needs to be completely replaced), there are two ways: one is to release the oil by gravity, the oil change rate is about 40%, the principle is the same as the replacement of oil, generally an 8 liters of oil The gearbox can also replace 3 to 4 liters; the other is to use the dynamic oil change method of the machine, using pressure to replace the oil in the torque converter oil tube and the oil in the heat-dissipation oil tube. The actual capacity of the box is doubled. In the latter way, the oil change rate will be as high as 80%.
The specific oil change interval should be determined according to the specific circumstances, and the replacement interval of vehicles that are often driven in bad road conditions should be shorter, and vice versa. At present, most of the domestic automatic transmissions need to replace the transmission oil about 60,000 kilometers.
Of course, it should be replaced every 80,000 kilometers (or 48 months) in a good-environment area, and once every 40,000 kilometers (or 24 months) in the Chinese mainland, and it is sometimes recommended for every 20,000 people depending on usage. Kilometer (or 12 months) change once. Atf has a variety of models, can not be replaced by mistake, atf model manufacturers generally will be marked on the dipstick or in the owner's manual.
Precautions
The friction coefficients of automatic transmissions of GM, Toyota, and Ford are different, so the automatic transmission oils are different and cannot be mixed. Mixing can cause damage to the friction plates of the gearbox, which can severely destroy the friction plates within 3 months.
Before replacing the automatic transmission oil, it should take more than 20 minutes to drive the oil. At the same time, the replacement of automatic transmission oil requires dedicated equipment and technology, and the owner must change oil to a reputable repair shop.
It is advisable to wash the automatic gearbox thoroughly with a professional cycle washer.
Check the automatic transmission line for oil leaks.
Check the bottom shell of the automatic transmission for deformation or oil leakage.
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