Wouldn't it be fantastic if you could save money with a single push of a button? Amazingly enough, drivers can - thanks to a helpful hack for fuel saving which has taken the internet by storm.
As well as helping your wallet stay fuller for longer, the tip also solves a long and much asked question, explaining the use of an unknown button found in every car.
So it comes as no surprise that drivers have been left dumbfounded by the tip popularised by TikTok user 'Megan's Bubble' - which has received the backing of an AA spokesperson.