Reduce your driving speed when conditions allow. Air resistance is proportional to the square of your speed, so slowing from 100Km/h to 90Km/h reduces your car's air resistance by nearly 20%.
For our US colleagues, slowing from 65mph to 55mph reduces your air resistance by 28%.
Combine this with slower acceleration, less braking and better anticipation will reduce your fuel consumption by 10 - 15%.

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