How Often Should the Transmission Fluid of BYD Tang Be Changed?

[MichaelRose]

BYD Tang transmission fluid generally needs to be changed every two years or every 40,000 kilometers. The amount of transmission fluid required for each change depends on the model and the replacement method. If the driving conditions are harsh, it is recommended to change the transmission lubricant in advance. Here is a brief introduction to the transmission fluid of BYD Tang: The BYD Tang transmission fluid requires about 6 liters for a gravity change and about 12 liters for a machine flush. The BYD Tang transmission system uses a 6-speed DCT wet dual-clutch transmission, which requires a specific type of transmission fluid, similar to automatic transmission fluid, and the two cannot be used interchangeably.

[VonTeagan]

I've been driving a BYD Tang for several years and often refer to the official manual, which clearly states that the transmission fluid should be replaced every 60,000 to 80,000 kilometers or every four to six years, whichever comes first. Why is this so important? Because over time, the fluid oxidizes and degrades, leading to sediment buildup, which affects shifting smoothness and may even damage transmission components. I remember once exceeding the mileage without changing it, and I noticed sluggish acceleration and increased fuel consumption. A fluid change costs just a few hundred yuan, which is much more economical than major repairs costing thousands or even tens of thousands. I recommend owners regularly check the fluid color: if it turns black or has a burnt smell, replace it immediately. Additionally, driving habits also matter—frequent high-speed driving or stop-and-go traffic accelerates fluid wear, so consider changing it a bit earlier. Developing this habit can extend your car's lifespan and save you a lot of money.

[VanSavannah]

As an experienced BYD Tang driver, I've tackled all kinds of road conditions. I usually change the transmission fluid every 70,000 km or so - the car has been running problem-free for five years. Here's a lesson learned: once I delayed the change due to busy schedule, and the transmission started making strange noises and overheating. Inspection showed the oil had thickened, affecting lubrication. Now I believe a 60,000-90,000 km interval works fine, depending on driving habits. For frequent mountain driving or dusty environments where oil gets dirty faster, change earlier; for urban short trips, slightly later is acceptable. Post-change, the car runs noticeably smoother with quicker acceleration and lower fuel consumption. Reminder: don't neglect minor maintenance - regularly check fluid level and condition yourself. Take action when it turns cloudy to ensure safe and comfortable driving.

[SanFelix]

As a BYD Tang owner focused on saving money, I recommend changing the transmission oil every 80,000 kilometers. Changing it too early is a waste of money, while changing it too late is risky. The cost of an oil change is a few hundred yuan, but delaying it until the transmission fails could cost tens of thousands to repair—not cost-effective. The manual says the interval is flexible, so I chose the 80,000-kilometer mark: changing it earlier offers no extra benefits, while changing it later carries higher risks. Once, I changed it late and noticed increased fuel consumption and poorer driving performance. Therefore, regular changes are a smart way to save. Pay attention to oil quality: check it periodically—clear and transparent is good, but if it's cloudy or black, change it. Adjust slightly based on whether you drive mostly in the city or on highways to optimize savings. A small investment now ensures big savings later.