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What is the difference between a dual-clutch transmission and a manual-automatic transmission?

2 Answers

DelaneyLee

07/25/25 4:34am

The differences between a dual-clutch transmission and a manual-automatic transmission are as follows: 1. In terms of fuel economy: The dual-clutch transmission is equivalent to two automatic clutches, making it generally more fuel-efficient. 2. Regarding power performance: The manual-automatic transmission is developed based on the traditional automatic transmission, with relatively slower overall response speed. Due to engine protection considerations, its power performance is relatively weaker. 3. In terms of cost: The manual-automatic transmission is generally used in some mid-to-high-end vehicles, with relatively faster gear shifting. The dual-clutch transmission is typically used in high-end models and sports cars, with very expensive components, making the manual-automatic transmission slightly better in terms of cost. 4. In terms of driving pleasure: The manual-automatic transmission is generally more inclined towards an automatic transmission, while the dual-clutch transmission is more inclined towards a manual transmission, offering better overall driving pleasure.

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SanAlice

08/10/25 5:26pm

I remember the first time I drove a dual-clutch car was on the racetrack, and the shifting speed was as fast as lightning, with no noticeable power interruption. A dual-clutch transmission actually has two sets of clutches—one for odd gears and one for even gears—so shifting is just a direct switch. On the other hand, a semi-automatic transmission is essentially a traditional automatic transmission with a manual shifting mode added. Its torque converter consumes some power, and there's always about half a second of lag during gear changes. For daily driving, dual-clutch transmissions can be jerky in traffic, especially during low-speed follow-ups, but they have a clear advantage in fuel efficiency on highways. Semi-automatics are much more robust, cheaper to repair, and as durable as manual transmissions, making them particularly suitable for those who frequently haul goods. Nowadays, many performance cars prefer dual-clutch transmissions, but for family cars, semi-automatics are still the more worry-free choice.

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