With the continuous development of automotive technology, the choice of transmission has become increasingly important. In the market, the 7-speed wet dual-clutch transmission and the 8AT transmission have attracted much attention. So, which one of these two transmissions has a longer lifespan?
Let's first take a look at the 8AT transmission, which has a long history of development and is equipped in a large number of vehicles.
It adopts a design with a torque converter, making gear shifts smoother and more comfortable without noticeable jerks. Especially on city roads with frequent starts and stops and low-speed driving, the 8AT transmission performs admirably, showing strong adaptability.
However, due to the addition of the torque converter, the fuel consumption of the 8AT transmission is slightly higher. Nevertheless, in actual use, its fuel-saving performance is not significantly different from that of the 7-speed wet dual-clutch transmission.
Next, let's consider the 7-speed wet dual-clutch transmission. The structure of this transmission is similar to the combination of two manual transmissions, with two clutches controlling odd and even gears respectively, achieving more efficient gear shifts.
In daily driving, the 7-speed wet dual-clutch transmission is relatively fuel-efficient, while also offering fast gear shifts and high transmission efficiency. However, because both dry and wet clutches are used in the dual-clutch system, some issues need to be noted during use.
If dry clutches are used, the power transmission range is limited and cannot withstand high torque output. On the other hand, using wet clutches may lead to unstable transmission performance on city roads with frequent starts and stops and low-speed driving.
