For traditional gasoline-powered passenger vehicles, the theoretically most fuel-efficient speed range is approximately between 60-80km/h. This speed is suitable for ordinary elevated roads, ring roads, expressways, and other medium-speed roads. On highways, you should not drive below the minimum speed limit. Driving at a low speed on the highway to save fuel not only affects traffic efficiency but also significantly increases the risk of traffic accidents, which is more harm than good. To save fuel, you can improve your driving habits: gently press the accelerator, accelerate smoothly, avoid sudden acceleration and abrupt braking, and also avoid frequent stop-and-go situations, like in traffic jams.
