You can change the oil in the gearbox at any of the service centers, but why spend money on a service center if it is not difficult to do it yourself, in your own garage. Looking ahead, I will say right away that the oil in the box is not exposed to soot, condensation or fuel, and the only thing that contaminates it are microscopic particles formed as a result of friction of the gearbox parts during operation.
Why is an oil change necessary at all? The fact is that the normal operating temperature of an automatic transmission is 95 degrees, any excess of this rate leads to wear of the oil, and if the temperature rises above 200 degrees, the oil will cook. In modern oils, many additives are used to prevent corrosion and foaming, which also lose their properties over time.
It should be borne in mind that before changing the oil in the automatic box, first of all, you need to check its level, using a dipstick, it is easy to see on it what level is now. If it is low, then it is better to tow the car to the garage or to the auto repair shop. It is necessary to check the level when the box is hot. It is best to do this with different positions of the range lever.
The replacement is carried out according to the standard method: we drive the car into a pit, overpass, or simply lift it on a lift, remove the pallet, drain the used oil and replace the filter, then put the pallet back and fill it with new oil through the neck. If the oil is changed in this way, up to 2/3 of the old fluid can remain in the torque converter, which will lead to the ingress of old contaminants into the new oil. To avoid this, some cars have a special plug, which it is advisable to find out about in advance by consulting a specialist, or by studying the instructions for the car, in which it will certainly be indicated. It is advisable to change the oil on time, how often it is necessary to change the oil is indicated in the instructions for the car.
If the car has passed a significant mileage or was subjected to high loads, then when changing the oil in the box, it is advisable to use various additives and flushes, which not only allow you to clean the box of old debris and clean the channels, but also remove carbon deposits from the parts, preparing the gearbox for an oil change. During operation, you need to regularly check the oil level and, having found a low level on the dipstick, look for a leak and fix it.
