British comedy legend Stephen Fry has sent Twitter into a meltdown by sharing a little-known car hack that is invaluable to know.
The former host of QI is well known for sharing things that are, well, quite interesting, so it should come as no surprise that he knows things that others don't.
But recently he discovered a feature in his car - that if you look closely at the petrol gauge, there is a little arrow letting you know which side of the car your filler cap is on.
The Lord Melchett actor shared a picture of the display on the dashboard of his car and sure enough there's a little white arrow pointing to the left, indicating that he should drive to the right of the pumps.
What do you think about the tip? Let us know in the comments...
Taking to Twitter, he wrote: "Well, simmer me in prune juice and call me Daisy. I never knew till now that you can tell which side of a car the filler cap is on by a little arrow next to the petrol pump icon.
"64 years on the planet shrouded in ignorance. My life is changed forever."
The original post was shared over 500 times in just a few hours and soon Mr Fry was inundated with comments.
One user said: "I only learnt that in the last few years too. Although, I still get confused - does the arrow mean your car needs to be to the left of the pump, or that your filler cap is on the left - as I am pulling into the petrol station I forget and panic?"
Then another wrote: "I wonder if it's the same for Electric cars? I've never been in an electric car though. Thinking about it, I would be disappointed if there's not a wee lightning bolt or something in place of the fuel pump icon."
And a third added: "İt is so funny that even with a car that I've been driving for several years my brain simply forgets where the cap is and i resort to this method weekly."
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Meanwhile, TikTok can always be relied on to teach us a number of life hacks and lessons we never knew we needed - from bringing wilted vegetables back to life to repairing broken zips at home in under 60 seconds.
And now it's taught us something about our car that we had been pretty clueless about for years.
A man named Justin, who posts under the username @milltj01, has created a video to share a discovery he made about the fuel cap on his car.
He captioned his post: "How did I not know this?"
In the clip, he shows himself removing the fuel cap from his car, as if he was going to fill it up with petrol.
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