In which manner is fuel consumption and pollution most reduced while driving?

Question

DentroTest · Accepted Answer

Efficient driving is based on optimizing engine performance. The correct answer is with high gears and the engine at low revolutions. Detailed analysis: High gears and low revs (Correct): By using high gears (4th, 5th, 6th), the engine rotates fewer times to maintain speed. Fewer rotations mean fewer fuel injection cycles per minute, reducing consumption, noise, and emissions. In diesel engines, it is recommended to shift between 1,500-2,000 rpm, and in petrol engines between 2,000-2,500 rpm. Low gears and high revs: This is the highest consumption scenario (e.g., accelerating hard in 1st gear). Energy is wasted in internal friction and heat without gaining much distance. High gears and high revs: This would imply driving at very high speeds (speeding), where air resistance exponentially increases fuel consumption.

In which manner is fuel consumption and pollution most reduced while driving?

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