Will a Flush Machine Damage the Transmission During Oil Change?
2 Answers
Using a flush machine to change transmission oil will not damage the transmission. The drawback of using a flush machine for transmission oil changes is the increased usage of transmission oil, leading to higher costs, but it does not harm the transmission. The functions of a transmission are: 1. Changing the gear ratio; 2. Expanding the torque and speed of the driving wheels; 3. Enabling the vehicle to reverse; 4. Facilitating gear shifting or power output. Methods for maintaining the transmission include: 1. Regularly checking the oil level; 2. Avoiding skipping gears when upshifting; 3. Not forcing the transmission into neutral; 4. Not shortening the idle warm-up time; 5. Avoiding gear grinding when shifting. Signs of a failing transmission are: 1. Gear shifting is rough or jerky while driving; 2. The engine revs without acceleration when accelerating; 3. The oil temperature is too high, emitting a strange odor; 4. Gear shifting takes too long or is too short.
Ah, this is a question I get asked a lot, about whether a transmission flush machine can damage the gearbox. Actually, as long as it's done by a professional shop with proper operation, the method itself is safe and can thoroughly clean out old oil residue and impurities, making it cleaner than traditional gravity draining. I recommend first checking the shop's equipment cleanliness and the technician's experience, because if the machine has accumulated dirt or the operating pressure is too high, it might clog the filter or damage the seals. Another key point is the quality of the oil—make sure to use the recommended type for the transmission, and don’t skimp by using cheap, low-quality oil. Some car owners worry about jerky shifting after the flush, which could be due to contamination from old oil mixing in, so it’s important to drain the old oil reservoir during the change. Regular maintenance is key—changing the oil every 40,000–60,000 kilometers can protect the transmission. In short, the flush method poses minimal risk in a proper setting and can actually extend the lifespan of components, saving both money and hassle.
