Which is better, gravity oil change or cyclic oil change?The correct way to change gearbox oil by gravity

Changing the gearbox oil by gravity is to open the drain screw under the gearbox oil, and the gearbox oil will flow out through gravity and fluidity. The oil must be drained after the engine has been running for a period of time, and then added New gearbox oil is sufficient. To change the gearbox oil of the cycle machine, open the drain screw under the gearbox oil. After about 3 liters of old oil is discharged, the screw on the oil pan will be unscrewed. The 1 liter of old oil inside will also be discharged and cleaned. Oil pan. After adding new gearbox oil into the gearbox, the remaining old oil will be pushed out due to pressure, which is equivalent to pushing forward waves from the back waves of the Yangtze River.

Each method has its advantages and disadvantages. The advantages of gravity changing gearbox oil are low cost, fast replacement efficiency, and convenient operation. The disadvantage is that the oil is not clean, and the oil change rate can only reach 40% to 50%. The advantage of changing the gearbox oil of the cycle machine is that the oil drain is relatively clean, and the oil change rate reaches 80%. The disadvantage is that the operation time is long, the cost is low, and it may cause malfunctions. The owner can choose the method of changing the gearbox oil according to their own needs.

The replacement cycle of the transmission oil is not fixed, and it is mainly determined according to the model of the vehicle and the type of the transmission oil. Generally speaking, the replacement cycle of automatic transmission oil is 50,000 kilometers to 80,000 kilometers or two years, and the replacement cycle of manual transmission oil is generally 100,000 kilometers or three years.