Watch: The secret dashboard symbol you need to know about

Ever pulled up to the petrol pumps, only to discover the fuel cap is on the other side?

It's an easy to do, especially if you're driving an unfamiliar car. But as we reveal in the video above, there's a secret dashboard symbol that'll ensure you never make the same mistake again.

For more refuelling tips, see our expert advice on finding the cheapest petrol near you.

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