Is it true that fuel consumption is reduced by around 10% if you lower your speed from 110 km/h to 100 km/h?

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If you lower your speed from 110 to 100 km/h, you reduce your fuel consumption by 10 per cent.” (Swedish Transport Administration)

Why is this relevant?
– This has to do with the environmental objectives in the driving licence training. The lawmakers have an interest in you being aware of tips and tricks to lower fuel consumption.

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