for fuel economy, CVT transmissions generally perform better under urban driving conditions. Their continuously variable design allows the engine to consistently operate within the optimal speed range, significantly reducing fuel consumption during frequent starts and stops. Test data shows that their fuel consumption in urban driving conditions is 10% to 15% lower than that of comparable models. AMT transmissions, on the other hand, inherit the high transmission efficiency of manual transmissions, delivering fuel efficiency close to manual transmissions during high-speed cruising. However, due to power interruption during gear shifts, their overall fuel consumption may be 5% to 8% higher than CVTs. The difference in fuel-saving characteristics between the two transmissions stems from their technical principles: CVTs achieve continuous variability through steel belts and pulleys, eliminating the fixed gear ratio limitations of traditional transmissions; AMTs simulate manual gear changes via electronic control systems while maintaining the mechanical efficiency of gear transmission. Notably, actual fuel consumption is also influenced by driving habits. Smooth acceleration and anticipatory deceleration can maximize the transmissions' fuel-saving potential. If the vehicle budget permits and urban commuting is the primary use, CVTs offer a more economical choice.
