What is a Wet Dual Clutch?

[DelBella]

Wet dual clutch has the following meanings: 1. Wet dual clutch: It refers to a dual clutch system consisting of one large and one small multi-plate clutch, both installed coaxially in a sealed oil chamber filled with hydraulic oil. Therefore, the wet clutch structure has better adjustment capabilities and excellent thermal properties, allowing it to transmit relatively large torque; 2. Advantages: The wet dual clutch is stable and mature, not only enabling fast and smooth gear shifts without interruption but also preventing overheating at low speeds due to the cooling effect of the oil; 3. Disadvantages: The structure is complex, and the size and weight are relatively large. The manufacturing cost is significantly higher than that of a dry dual clutch. Additionally, maintenance is relatively time-consuming and labor-intensive, and the coolant needs to be replaced regularly.

[VanBenjamin]

The wet dual-clutch transmission is a type of automotive drivetrain. I've driven quite a few cars equipped with this technology, and it feels quite practical. Simply put, its dual clutches operate immersed in oil, which acts as both a lubricant and coolant, helping the clutch plates shift more smoothly. Unlike dry dual-clutch transmissions that rely on air for cooling and are prone to overheating, the wet type is more durable during aggressive driving or in stop-and-go traffic, reducing the risk of burning out. In actual driving, gear shifts are incredibly fast, almost instantaneous, delivering strong acceleration and slightly better fuel efficiency. However, the vehicle price tends to be higher, and regular oil changes are required for maintenance. I recommend periodic checks of the transmission fluid and avoiding prolonged high-load driving to extend its lifespan. Many mid-to-high-end cars, such as the Volkswagen Golf GTI or certain Porsche models, use this type of transmission. It offers quicker responses than traditional automatic transmissions and delivers a sportier driving experience, making it ideal for those who enjoy driving pleasure. That said, it requires more installation space and has slightly higher maintenance costs. Overall, it’s a great choice for owners who prioritize reliability and performance.

[VictoriaRose]

The wet dual-clutch transmission gives me an exhilarating driving experience. Its smooth gear shifts make the car accelerate like flying, switching gears as swiftly as lightning, with absolutely no jerking. The key structure involves two clutches working alternately in an oil bath—one managing odd gears and the other even gears. The oil immersion helps with cooling, so whether on the track or in stop-and-go traffic with frequent shifts, it never falters. I’ve driven cars with this transmission on highways for overtaking, and the kick-down feeling is intense—more stable than dry dual-clutch systems, which tend to wear under high heat. Plus, it maintains uninterrupted power delivery and even saves a bit on fuel compared to automatic transmissions, which lose more power. The downside is higher maintenance costs; oil changes must be timely, or clogged oil can cause major issues. Compared to manuals, it’s more convenient and responsive but lacks that mechanical control feel. It suits sporty models like the Focus ST, balancing daily driving and excitement—boosting both confidence and comfort. Highly recommended for tech-savvy performance enthusiasts.

[SanIsabella]

As an average car owner, what I care about most is the durability of wet dual-clutch transmissions. It's a type of gearbox where the clutch plates operate immersed in oil, which provides protection and cooling, preventing heat damage like in dry versions. In daily driving, gear shifts are smooth, eliminating the hassle of manual operation. Maintenance-wise, extra attention should be paid to oil change intervals, with inspections every few tens of thousands of kilometers, as dirty oil can easily affect performance. The cost is slightly higher than conventional automatic transmissions, but with proper maintenance, it can last over 100,000 kilometers without issues. I've driven such cars for urban commuting—reliable, efficient, with decent fuel economy, especially stable in stop-and-go traffic. The downside is that if oil leaks or becomes contaminated, the risk of transmission failure increases, and repairs can be complex. Overall, for those seeking a smooth driving experience and wanting to avoid frequent repairs, it's quite cost-effective and helps extend the vehicle's overall lifespan.

[OSimon]

A wet dual-clutch transmission is essentially an automatic transmission, with its core being the dual-clutch operating in an oil bath, ensuring smooth gear shifts and durability. I've analyzed its pros and cons: advantages include ultra-fast shifting that enhances driving efficiency, oil cooling that reduces overheating risks, and good fuel economy; disadvantages such as higher initial costs, the need for regular oil changes and maintenance, and larger space requirements. Compared to dry dual-clutch transmissions, dry types rely on air cooling and are cheaper but prone to issues in hot weather; compared to automatic transmissions, it responds faster without as much fuel consumption; and compared to manual transmissions, it eliminates the clutch pedal but adds electronic control. Maintenance-wise, keep the oil clean to avoid jerky shifts. Many car brands use it in high-performance vehicles to balance speed and reliability. Overall, for those who frequently drive long distances or in traffic jams, it offers better protection and practical value.