The transmission oil of Dongfeng Nissan Teana is considered maintenance-free, but it does not mean it can be used for a lifetime without replacement.
In fact, the aging degree of the transmission oil can be monitored through specialized diagnostic computers. It is recommended that owners replace the transmission oil every two years or after driving 40,000 kilometers.
Failing to change the oil for an extended period may result in increased noise during vehicle operation and reduced power. The new Teana CVT transmission is equipped with a dedicated computer that can monitor the aging condition of the transmission oil in real-time.
If the aging degree exceeds 200,000 kilometers, timely replacement of the transmission oil is advised. The lifespan of a vehicle is closely related to the owner's driving habits and maintenance practices; some CVT models may not require frequent oil changes, but this could mean that the vehicle experiences slow shifting, jerking, shaking, and abnormal noises.
If the automatic transmission is not regularly maintained, internal wear and accumulation of impurities can lead to blockage, wear, or even corrosion of the transmission system, resulting in poor fluid flow in the torque converter and slow shifting.
In addition, the oxidation of engine oil can cause gear corrosion, wear, and sludge formation, leading to insufficient lubrication of the internal components of the transmission, creating a vicious cycle.
Excessive impurities can also accelerate the aging of the seals, thereby shortening the lifespan of the transmission, and drivers may encounter issues such as failure to upshift, difficulty in downshifting, frequent stops, and unsmooth shifting.
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