How Much More Fuel Does an Automatic Transmission Consume Compared to a Manual Transmission?

[ThomasDella]

Theoretically, the hydraulic transmission loss of an automatic transmission is about 5% greater than that of a manual transmission, resulting in approximately 5% higher fuel consumption. Below is an introduction to manual transmissions: Principle: The power input shaft is connected to the clutch, and the power transmitted from the clutch is directly passed to the gear set through the input shaft. The gear set consists of gears with different diameters, and different gear ratios achieve entirely different power transmission effects. Gear shifting during normal driving refers to changing the gear ratio. Advantages: Simple structure, reliable performance, low manufacturing and maintenance costs, and high transmission efficiency (theoretically more fuel-efficient). Additionally, due to pure mechanical control, gear shifting is faster and more directly reflects the driver's intentions, making it more fun to drive.