What is an 8AT Transmission?

2 Answers
StElle
07/28/25 9:04pm
8AT transmission refers to an automatic transmission with 8 forward gears. The advantages of an 8AT transmission include the following: 1. Lower fuel consumption: The increased number of gears allows for a closer gear ratio, enabling the vehicle to operate at more optimal gears, reducing engine speed, and thereby decreasing fuel consumption. 2. Faster acceleration: The 8-speed automatic transmission, with its higher overall gear ratio, enhances acceleration performance. 3. Higher torque capacity: The 8-speed automatic transmission combines lightweight components with innovative gear set concepts, featuring two additional gears that can transmit greater torque while maintaining fewer components and unchanged weight. 4. Lower resistance loss and higher mechanical efficiency: The 8-speed automatic transmission is equipped with four gear sets and only five shift elements, with only two elements engaged during each shift. Additionally, the new axial-parallel sliding vane pump improves transmission efficiency, minimizing energy loss.
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LouisLee
08/12/25 1:45am
Oh, the 8AT transmission is a type of automatic transmission, but it specifically has 8 forward gears. This means that while the vehicle is moving, it automatically shifts between 8 different speed gears based on the car's speed and throttle, making the power output smoother. For me, after driving a car equipped with this transmission, the feeling was amazing—almost no jerking during acceleration, especially when overtaking on the highway, it was as smooth as silk. Moreover, compared to older 4-speed or 6-speed automatic transmissions, the 8AT can better match the engine's RPM, significantly improving fuel efficiency. Nowadays, many high-end SUVs and sedans use this configuration, such as flagship models from BMW or Toyota, not only making the ride more comfortable but also reducing noise and vibration, making daily commutes particularly hassle-free. However, I must remind you that the internal structure of this type of transmission is relatively complex, and repairs can be quite costly if something goes wrong, but overall, the pros outweigh the cons. In short, it represents the advancement of modern automotive technology, bringing a significantly upgraded driving experience.
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