Do I need to change the gear oil when replacing the clutch?

[Elizabeth]

Changing the clutch requires changing the gear oil. Clutch replacement: When replacing the clutch three-piece set, the transmission must be removed from the vehicle, and the half-shafts on both sides of the transmission must be taken off. When the half-shafts are removed, the gear oil in the transmission will flow out quickly and in large quantities. Precautions: The clutch must be cleaned before installation to remove anti-rust grease and debris. The clutch can be installed coaxially or on separate shafts. Axial fixation is mandatory, and neither the driving part nor the driven part is allowed to have axial movement. When installed on separate shafts, the coaxiality between the shafts of the driving part and the driven part should not exceed 0.1mm. For wet electromagnetic clutches, lubricating oil must be added between the friction plates during operation.

[DeMariana]

I've been in the car repair business for a while, and when it comes to replacing the clutch, you usually need to change the gear oil at the same time. The clutch assembly is inside the transmission, and when you take it apart, the oil will either leak out or get contaminated. If you keep using the old oil, the gears and bearings inside the transmission are prone to wear or start making noise. I've seen plenty of people try to save a bit of money by skipping the oil change, only to end up with problems a few months later, requiring another repair and costing even more. My advice is to go to a reputable workshop and check your car’s manual for the recommended oil change interval. For most regular cars, changing the oil every two years or 40,000–50,000 kilometers helps keep things running smoothly. Replacing the clutch itself is a good opportunity for maintenance, and changing the oil at the same time can extend the overall lifespan of your vehicle—don’t cut corners to save a few bucks.

[LaDelilah]

As a regular car owner, I was quite hesitant about whether to change the gear oil when replacing the clutch. After consulting a mechanic, I learned it's best to change them together. The clutch is located below the transmission, and the disassembly process can easily contaminate or cause the oil to leak. The old oil may contain metal shavings, and continuing to use it can affect shifting smoothness or even cause gear jamming. Although I spent a bit extra, I felt much more at ease, and now the transmission runs exceptionally smoothly. If you're on a tight budget, you can check the oil's color and level—consider changing it if it's dark or low. However, prevention is always better than repair. Pay attention to your car's condition; safety comes first.

[DelAustin]

From a maintenance perspective, replacing the clutch often requires disassembling the transmission components, which can lead to gear oil leakage or contamination. Therefore, it is generally recommended to replace the gear oil simultaneously. Gear oil lubricates the internal parts of the transmission, protecting components from wear; not replacing it increases the risk of friction, leading to abnormal noises or malfunctions. In practice, during repairs, the old oil is drained and new oil is added to ensure everything is clean. While not mandatory, most manuals recommend this maintenance practice to optimize performance. Remember, the type of oil varies by vehicle model (e.g., GL-5 specification), so selecting the correct oil is crucial.