How to Drive a Manual Transmission Car for Better Fuel Efficiency?
1 Answers
When going uphill, the engine traction force Fe=Fz+F31, and the car maintains a constant speed; when Fe＞Fz+F31, the car accelerates, and the engine requires fuel to do work. As long as you don't stomp on the gas or brakes aggressively, the fuel consumption difference is minimal. Therefore, for cars equipped with cruise control, enabling it on good roads with light traffic to maintain Fe=Fz+F31 and keep the car moving at a constant speed can slightly improve fuel efficiency, though the effect is not significant. On flat roads, F31=0, and Fe=Fz, the car maintains a constant speed; when Fe＞Fz, the car accelerates, and the engine requires fuel to do work. Similarly, using cruise control to maintain Fe=Fz and keep the car moving at a constant speed can slightly improve fuel efficiency, though the effect is not significant. (Note: On flat roads, many taxi drivers aggressively step on the gas and then coast in neutral. Long-term observations show that fuel consumption decreases noticeably at lower speeds. However, this method can lead to loss of control at higher speeds and is not recommended.) When going downhill, Fe+F31=Fz, and the car maintains a constant speed; when Fe+F31＞Fz, the car accelerates. When F31≥Fz, the engine doesn't require any fuel to do work, and the car can move forward.
