Is it necessary to circulate transmission oil?Steps for changing gearbox oil of circulator

The traditional manual replacement of gearbox oil can only remove part of the gearbox oil, and some are left at the bottom of the gearbox oil shell, which cannot be removed. The replacement is not complete. It can only be mixed with new oil and old oil. Fully play the role of replacement. However, there is a circulating oil change method, which has good efficiency and high oil change rate, but consumes a lot of fuel and is relatively expensive. Is this kind of circulating transmission oil necessary?

Whether circulating transmission oil is necessary or not, the specific requirements depend on the situation. The manual transmission does not require high transmission oil. After all, the structure is simple, and manual replacement seems to be no problem, and it is economical. But for automatic gearboxes, it is necessary. The structure of automatic gearboxes is more complicated and requires high gearbox oil. Once the oil quality is not good, problems are prone to occur. The circulating gearbox oil can achieve the effect of complete replacement. Thoroughly, can extend the maintenance cycle of transmission oil.

The principle of using a cycle machine to replace gearbox oil is to extract new and old mixed oil while adding new oil, and use pressure to push out the old oil with new oil to ensure that the gearbox is filled with new oil. The specific steps for changing the gearbox oil of the circulating machine are as follows:

1. Find the oil injection port and oil discharge port of the gearbox, and connect the oil inlet and outlet pipes of the cycle machine;

2. Fill the automatic transmission oil into the circulation machine;

3. Start the machine and perform the automatic replacement procedure. The car needs to be started during the replacement process;

4. When the oil in the old oil viewport is observed to become clear, it indicates that the old oil in the gearbox has been drained and the gearbox oil has been replaced.

Generally, a cycle machine is used to replace the transmission oil. The amount of new oil used is more than twice that of the traditional manual replacement. It requires 9-12 liters of new oil, which is expensive, but the effect is obvious, and it is suitable for automatic transmissions.