
Introduction to the differences between automatic and manual transmissions: 1. Different principles. 1. Manual transmission: The driver manually shifts the gear lever (shift knob) to change the gear meshing position inside the transmission, altering the gear ratio to achieve speed variation. 2. Automatic transmission: While driving, the driver operates the accelerator pedal as needed, and the automatic transmission automatically shifts into different gears based on engine load and vehicle operating conditions, adjusting gear changes according to vehicle speed and engine RPM. 2. Different characteristics. 1. Manual transmission: Stable performance, high transmission efficiency, and high fuel utilization. 2. Automatic transmission: Convenient operation with flexible gear ratios. There are various types, including hydraulic automatic transmissions, mechanical continuously variable transmissions (CVT), electronically controlled mechanical automatic transmissions, and dual-clutch automatic transmissions. The transmission is connected to the engine via a clutch, allowing the transmission's input shaft to synchronize with the engine's RPM. 3. Transmission efficiency. Differences exist because manual transmissions rely entirely on mechanical transmission, whereas automatic transmissions use hydraulic transmission via a torque converter, leading to variations in operational efficiency and resulting in differences in fuel consumption. For vehicles of the same brand and displacement, manual transmissions can save approximately 10% more fuel compared to automatic transmissions.

I've been driving for most of my life, having tried both manual and automatic transmissions. The biggest advantage of installing an automatic transmission is peace of mind, especially in traffic jams where you don't need to press the clutch with your left foot or shift gears with your right hand, freeing up both hands. Manual transmissions are simple and reliable in structure, and it's easier to replace parts yourself, unlike the precision and complexity of automatic transmissions. Over time, the difference in maintenance costs becomes apparent—replacing a clutch plate for a manual transmission costs a few hundred dollars, while repairing an automatic transmission can easily run into thousands. In terms of fuel consumption, manual transmissions are more fuel-efficient, but with continuous advancements in automatic transmission technology, the gap in fuel consumption between current CVTs and dual-clutch transmissions isn't significant. If you frequently drive long distances, the comfort of an automatic transmission is truly irreplaceable.

As a female car owner, I strongly recommend automatic transmission. Cars equipped with automatic transmissions are much easier to drive, especially when picking up kids in traffic jams. You only need to control the accelerator and brake with your right foot, without worrying about stalling or rolling back, which can be embarrassing. Manual transmission models require frequent gear shifting, making it easy to get flustered when starting. Although automatic transmission cars are slightly more expensive, the daily convenience makes it worthwhile. The reliability of automatic transmissions has also improved significantly, and the difference in fuel consumption is within an acceptable range. Automatic transmission is the first choice for urban life, as it saves energy that can be used to focus more on road conditions and pedestrian safety.

With twenty years of experience in car repair, I've seen all kinds of transmission issues. The mechanical structure of installing a manual transmission is much simpler, with the main components being the gear set and clutch plates, making repairs straightforward and cost-effective. Automatic transmissions are entirely different, featuring precision components like hydraulic systems, planetary gears, and solenoid valves, which can lead to expensive repairs once problems arise. Manual transmission vehicles only require regular clutch plate replacements, whereas automatic transmissions must have their specialized fluid changed every 60,000 kilometers. In terms of long-term durability, manual transmissions indeed hold an advantage, especially for vehicles frequently carrying heavy loads or climbing hills. The failure points also differ significantly between the two: automatic transmissions commonly experience jerky shifting, while manual transmissions often suffer from excessive clutch wear.

Those who frequently transport goods in mountainous areas understand the difference between transmissions best. Installing a manual transmission allows for precise control of power output—the exhilarating feeling of climbing steep slopes with the engine roaring in low gear is simply unmatched. Automatic transmissions often hesitate between gears during continuous climbs, affecting efficiency. However, the situation reverses when delivering in the city—the advantage of not repeatedly pressing the clutch with an automatic transmission is too obvious, and your left foot won't cramp anymore. The difference in fuel consumption is particularly noticeable under heavy loads; my manual transmission truck saves two liters of fuel per 100 kilometers compared to the fleet's automatic ones. As for maintenance costs, manual transmissions can be repaired at roadside shops, while a broken automatic transmission must be towed to a specialized repair facility.


