Does Blackened Transmission Fluid Need Replacement?
2 Answers
Blackened transmission fluid requires replacement. Here are common methods for replacing transmission fluid: 1. Gravity Drain: This is the most common and easiest method, but it cannot completely drain the transmission fluid. Residual fluid often remains in low spots and dead corners. 2. Machine Flush: New transmission fluid is added to a flushing machine, which connects to the transmission's fluid lines. The machine functions by pushing new fluid to flush out the old, ensuring a cleaner replacement. This method more thoroughly cleans the fluid passages. Signs of deteriorated transmission fluid include: 1. Jerking Issues: Vehicle shaking or gearshift jerking may indicate clogged valve bodies due to contaminated fluid. 2. Abnormal Noises: Caused by gear deformation or excessive sediment buildup in the oil pan.
If the transmission fluid turns black, it definitely needs to be checked. I've driven several cars before, and blackened transmission fluid indicates a significant accumulation of contaminants or metal debris, which severely degrades the fluid quality. If you delay changing it for too long, increased friction in the transmission can lead to overheating or even complete failure. Remember, the recommended interval for changing transmission fluid is typically every 40,000 to 60,000 kilometers or every two to three years. If the fluid is noticeably dark, you should address it immediately. Changing the transmission fluid isn't too expensive—just a few hundred yuan—but waiting until the transmission fails can cost thousands or even tens of thousands in repairs, which is not worth it. Make it a habit to check the fluid color during regular maintenance, and don’t just rely on mileage while ignoring the actual condition.
