Should that be done at all?
Every driver is familiar with the procedure of changing the oil, but only when it pertains to the engine. Many questions arise right away if we discuss changing the oil, or more precisely, the fluid in the automatic transmission. When to change and how to change are the key factors, but it is also intriguing whether this should be done at all, because manufacturers often indicate that the oil inside is
meant for the life of the service.
Why fluids in the gearbox
It is important to first comprehend what is causing the viscous fluid inside the gadget. We shall only discuss the traditional automatic transmission from this point on. The automatic gearbox's transmission fluid serves a number of very crucial purposes simultaneously. It is first and foremost the hydraulic system's working fluid. The pressure of the fluid inside causes the gears to change. Second, it cools the automatic transmission's internal components, and third, it lubricates components like bearings.
What's going on with ATF
The transmission degrades with time due to the production of additives and a drop in viscosity. Gearbox waste also mixes with the slurry. The numerous friction couples in automatic transmissions inevitably lead to wear. These are the tiny pieces that make up the friction clutches and other components inside the device. The passages in the valve body can fill up with time. due to its high temperature, causes the liquid to "age".
When do you change
Here, in fact, we come to the first controversial issue. A couple of decades ago, it can be said for sure that the oil is changed every 30-60 thousand kilometers. However, these days, some car manufacturers claim that the ATF is full for the life of the box. True, there are reservations in this statement. Manuals still indicate the frequency of replacement for harsh operating conditions. Moreover, it means not only some serious off-road traffic jams, but also normal traffic jams. Indeed, car operation in Kazakhstan can be classified as heavy and follow the recommendations of the manual.
How do you change
The second bone of disagreement is this. ATF replacement techniques have been the subject of numerous broken copies. There are two basic approaches: using specialized machinery, both partial and full replacement. It is obvious from the names of these two procedures what makes them different, but the question immediately follows: why change only a portion of the oil when the soiled residue will mix with new liquid?
Partial replacement
This approach is frequently advised for gearboxes that are older, especially if the date of the most recent oil change is uncertain. Many of these steps are thought to make it possible to totally update the ATF without significantly changing its fluid characteristics or running the danger of clogging due to the buildup of damaged products on the valve body and system walls. Detergents high in fresh ATF are to blame for the most recent issues.
The gearbox is given a thorough oil drain during the procedure, and the pan (if any) is taken out. This accounts for roughly half the overall volume in some circumstances. In other words, if 10 liters are added to the machine, the amount in the waste bath will be close to 5. In order to catch the foil, the magnet is cleaned, and the gasket is also changed. The latter is often attached to the drain plug. The process is then repeated after a brief period on a diluted liquid.