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Can you save fuel by slip-streaming other vehicles? © Getty Images

Can you save fuel by slipstreaming other vehicles?

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We got a little convoy, ain't she a beautiful sight.

Asked by: John Russell, Inverness

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Yes, vehicles create a region of relatively low-pressure air behind them, and it is indeed possible to reduce fuel consumption by getting into this ‘slip-stream’. According to research published last year by the University of Aachen, Germany, lorries can save around 17 per cent in fuel by tailgating each other. Don’t try it yourself, though.


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Authors

Robert is a science writer and visiting professor of science at Aston University.

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