
Engine and transmission are not the same. The engine is the power source of a car. Most car engines are thermal power devices, referred to as thermal engines. The transmission changes the transmission ratio, expanding the torque and speed of the driving wheels. The car engine is the device that provides power to the car, serving as the heart of the car, determining its power, economy, stability, and environmental friendliness. Extension: Classification of transmissions: The transmission mainly refers to the car's transmission, which is divided into manual and automatic types. The manual transmission mainly consists of gears and shafts, achieving speed and torque changes through different gear combinations. The automatic transmission (AT) is composed of a torque converter, planetary gears, a hydraulic torque system, and a hydraulic control system, achieving speed and torque changes through hydraulic transmission and gear combinations.

I've been driving trucks for long hauls over a decade, and there's a big difference between the engine and transmission. The engine is like a workaholic's powerhouse, chugging away burning fuel to generate power, providing the fundamental push; the transmission, on the other hand, acts like a smart dispatcher, responsible for adjusting speed gears to match different road conditions. On highways, the engine roars steadily, but the transmission shifts gears quietly, saving fuel and enhancing efficiency; when encountering steep slopes, the transmission proactively downshifts to increase torque and prevent rollback. I've experienced transmission failure before—getting stuck in low gear unable to climb a hill, fuel consumption skyrocketing, and repairs being more troublesome than minor engine issues. In truth, they must work in tandem—don’t slack on changing transmission fluid during maintenance to avoid dust clogging. Only when both cooperate can you travel safely, especially on long hauls—never ignore minor unusual noises.

As an automotive enthusiast, I believe the engine and transmission make a golden partnership while each has its own charm! The engine is a horsepower-producing machine that gets your blood boiling, with its roar igniting passion; the transmission is an invisible magician, skillfully converting torque and speed through gears. Driving a manual transmission car, shifting gears manually feels like dancing to a rhythmic beat; automatic transmissions are smarter, letting the computer handle the work for convenience but sacrificing some driving fun. For example, on the racetrack, a high-revving engine unleashing 600 horsepower relies entirely on the lightning-fast shifts of a dual-clutch transmission to win races. When modifying, upgrading the engine is easy, but mismatched transmissions can lead to catastrophic failures. A friend of mine had a transmission fluid leak, resulting in jerky starts that were unbearable. Maintenance-wise, regularly changing specialized fluids ensures both stay healthy, allowing you to fully enjoy the soul of driving.

When driving to and from work daily, I know the engine and transmission are completely different things. The engine burns fuel at the front to generate power and propel the car forward; the transmission at the rear adjusts speed by shifting gears, ensuring smooth acceleration. This is more noticeable in automatic cars—stepping on the gas makes the engine rev faster, while the transmission shifts automatically to avoid jerking. During my last maintenance visit, the mechanic said transmission issues like rough shifting could be due to low fluid levels or clutch wear, while engine problems like excessive noise often stem from carbon buildup or overheating. Cost-wise, replacing an engine is expensive but rare, whereas minor transmission repairs are more common. Routine maintenance is straightforward: change the engine oil regularly and don’t skimp on the transmission’s specialized fluid. When they work well together, driving is smooth and hassle-free.


