Which is more fuel-efficient, city driving or highway driving?

[StFelicity]

Highway driving is more fuel-efficient because on the highway, the engine operates at its highest gear. Generally, at 100 km/h, the engine speed is around 2000 RPM, which is just the normal operating range for most engines. Additionally, vehicles on the highway maintain a steady speed, requiring less intense power output—just enough to overcome driving resistance, thus resulting in better fuel efficiency. In contrast, city driving involves more traffic and complex road conditions, making it difficult to maintain a constant speed. There are also frequent traffic lights and potential traffic jams, especially in busy urban areas. This leads to lower speeds, more frequent braking, and repeated acceleration, all of which increase fuel consumption.