What is the Most Fuel-Efficient Driving Speed for a Car?

1 Answers
IkerDella
07/30/25 9:44am
Different engine displacement models have different fuel-efficient speeds. Here are the introductions for each fuel-efficient speed: 1. 1.2L-1.6L displacement: The fuel-efficient speed is approximately 70km/h. 2. 1.6L-2.0L displacement: The fuel-efficient speed is approximately 100km/h. For displacements ≥2.0L, the fuel-efficient speed is approximately 120km/h. Below is some extended information on the related content: 1. Balance point: A car's fuel consumption is closely related to the engine speed. Generally speaking, when the engine speed stabilizes between 2000 rpm and 2500 rpm, the vehicle often reaches the balance point between power and fuel consumption. 2. Tachometer: Under the premise of ensuring driving safety, you can observe the tachometer on the dashboard more frequently.
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