How to Replace the Transmission Fluid for the New Sylphy?

[LeJayden]

Loosen the nut at the bottom of the transmission oil pan to allow the old transmission fluid to drain out naturally by gravity. Store the new transmission fluid inside the circulation machine, and connect the transmission and the circulation machine through pipeline interfaces. The function of the circulation machine is to push the new fluid in and flush out the old fluid.

[StJordan]

Last time I changed the transmission fluid for my Nissan Sylphy by myself, and it was actually quite simple. First, lift the car and park it steadily on level ground, then open the hood to locate the transmission fill port and drain plug. Remember to wait until the engine cools down before starting, otherwise you might get burned by hot oil. When draining the old fluid, make sure to place a container underneath—once you unscrew the bolt, you'll see the dark, dirty fluid flowing out. After it's completely drained, screw the bolt back in and pour new fluid through the fill port. I used the genuine NS-3 transmission fluid, about 4 liters in total. The key is to use a funnel and add it slowly. After filling, start the engine and shift through all gears for a few minutes, then finally check the dipstick level. It's recommended to change it every 60,000 kilometers. Doing it yourself saves hundreds compared to going to a 4S shop, and all you need are a wrench and an oil drain pan.

[SamanthaRose]

Changing transmission oil is really not something to be taken lightly. I had it done at a familiar repair shop. The mechanic first lifted the car, located the drain plug at the bottom of the transmission to drain the old oil, and waited about twenty minutes to let the old oil flow out completely. Then, the oil pan was removed to clean out metal shavings and sludge—a step that's hard to do thoroughly at home. After installing a new filter and reattaching the oil pan, new oil was added through the fill hole on the side. They used professional equipment to measure the oil level, sealing it once it reached the standard mark. The whole process cost 400 yuan and used 4 liters of Nissan-specific transmission oil. I think the money was well spent. The mechanic said improper changing could affect gear shifting and, in severe cases, even burn out the transmission.

[MacHarper]

Actually, transmission fluid replacement requires proper timing and methods. For new cars, the first replacement should be done at 60,000 km or 4 years, and then every 40,000 km thereafter. It's recommended to use genuine NS-2 or NS-3 fluid, as mixing different types can damage the transmission. When replacing the fluid, remember to change the filter as well, otherwise metal shavings can clog the oil passages. The procedure is straightforward: lift the car, drain the fluid, clean the oil pan, replace the filter, and refill. The most critical part is controlling the fluid level—too much can cause overheating, while too little leads to insufficient lubrication. I suggest going to a professional repair shop, as they have dipsticks and pressure gauges to ensure accuracy. DIY replacement can easily go wrong, and repairing a transmission is far more expensive than a fluid change.