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BDifficulty 2/5

On the open road, which measure helps reduce a passenger car’s aerodynamic drag and fuel consumption?

Correct answer

Keep the windows closed.

Keeping the windows closed helps reduce aerodynamic drag. Use ventilation and climate control as needed for visibility and suitable conditions, avoiding unnecessary use. On descents, choose a gear that allows vehicle control; do not coast in neutral or always use the highest gear. Check tyre pressure periodically according to manufacturer guidance and load.

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  • Always open all windows to reduce aerodynamic drag.

  • Keep the windows closed.

  • Keep climate control at maximum even when unnecessary.

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