UK motorists have been urged to check their cars for an often-overlooked button that can slash petrol costs and improve cabin comfort. With another UK heatwave expected on September 8, with temperatures over 30°C forecast, keeping the cabin fresh is a priority. However, Kwik-Fit warns that air conditioning can increase fuel consumption by between eight and 10 per cent, using an estimated 0.2 to 0.4 litres per hour.
An expert on TikTok, @HarleyPerkins, highlighted the benefits of using the recirculating air button, describing it as a way to make your car 'so much more efficient'. He said: 'There's a button in your car that could literally save you £300 a year. But 90 per cent of drivers don't know about it.'
Using this feature in combination with air conditioning can be especially effective. The expert explained: 'When it's on, the car recirculates the air that's already in the car and doesn't pull air from the outside. And here's the trick: when you use this properly, especially with your air con, it makes your car so much more efficient.' He added that the car doesn't have to work as hard to heat or cool the cabin.
The TikToker noted that studies have shown this can boost fuel efficiency by 10 per cent across the year, saving drivers an average of £300, though the amount varies depending on driving habits. Additionally, the recirculating air button helps keep out bad smells, air pollution, and is beneficial for those with asthma or hay fever.
However, if not using air conditioning, drivers should avoid activating the button, as it circulates lukewarm air, potentially making the cabin warmer and causing windows to steam up. This simple, often-overlooked feature can improve comfort and fuel efficiency, particularly during hot weather.
