👉 Closehauled, also known as "close-hauling," is a mode of operation in which a vehicle travels at a high speed and low gear ratio to reduce fuel consumption while maintaining good traction on the road. This mode of operation is often used by trucks, buses, and other vehicles that have limited driving range or require a high-speed performance. In closehauled operation, the vehicle's engine turns at a higher RPM (revolutions per minute) than normal for efficient use of fuel.