The difference between gravity change transmission oil and circulator oil change

At present, there are mainly two ways to replace the oil in the accelerator tank, namely, the gravity change of the transmission oil and the replacement of the transmission oil by the circulating machine. Transmission fluid is one of the most important parts of the normal operation of a car. Generally, about 4 years or about 60,000 kilometers, the gearbox oil needs to be replaced to ensure the service life of the gearbox and make the vehicle run more smoothly and naturally.

Gravity oil change: Generally speaking, it is more convenient to change the oil by gravity oil change. However, some of the old oil that exists in the gearbox can only drain about 70% of the old oil due to the gully problem of the gearbox. If you want to use the gravity oil change method more thoroughly, you can remove the screws at the bottom of the gearbox, remove the bottom of the gearbox, and replace the magnetic strip and sealing strip at the bottom of the box, but it will be relatively troublesome. This is to use the principle of gravity to drain the old transmission oil through the oil drain.

Circulating machine oil change: By using the method of changing the transmission oil of the circulating machine, the old transmission oil can be replaced more thoroughly. Generally speaking, it can reach more than 85%. Of course, this method consumes more oil, and the cost of oil change is relatively high. The oil change of the circulating machine is more complicated and troublesome, and it must be replaced at a professional 4S shop. It first drains the oil by gravity, and then uses the circulator to remove the remaining oil in the gearbox, and uses the old and new oil circulation method to clean and replace the old oil.

The two methods of oil change, on a theoretical level, are more thorough and have advantages for the oil change of the circulator. In practice, many 4S stores currently lack circulation machines, so the gravity oil change method is the more commonly used method in China.