Is Manual Transmission More Fuel-Efficient Than Automatic Transmission?
1 Answers
Manual transmission is more fuel-efficient than automatic transmission for the following reasons: Gear Shifting Differences: Automatic transmission determines the shifting point based on sensor-detected torque changes (load and throttle opening), simulating preset shift points. In contrast, manual transmission allows the driver to control the shifting point based on their intention (driving skill)—making random and anticipatory judgments. Different Transmission Systems: Unlike manual transmission, automatic transmission features a hydraulic system that supplies power fluid to the hydraulic transmission. This power fluid system typically consumes about 5 kilowatts of power transmission. Additionally, energy is lost during driving due to the torque converter. However, this system requires the vehicle to remain in a gear while moving to keep the oil pump running continuously. Otherwise, an automatic transmission in neutral (N) may suffer oil pressure deficiency and overheating.