Air conditioning can get quite pricey over time The UK is basking in the full glory of summer, with people across the nation preparing for exciting outdoor escapades and those quintessential summer drives. However, a word of caution - your air conditioning could be draining your wallet. TikTok user @master_driver666, renowned for her invaluable motoring advice, revealed a button you should be using on your next journey. In her most recent viral video, she shared an ultimate hack to save your hard-earned cash while enjoying a cool drive. The video begins with her introducing a magical button that can revolutionise your driving experience. She said: "This air conditioning button in the car, do you know what it is for? "Many people think it is only used to turn on air conditioning in summer, totally wrong! If you use this air conditioning button as well, driving is extremely fuel-efficient." She then continued: "First, turn on the air conditioning in summer, open the inner loop, this cooling effect is very good. Second, turn on the air conditioner in winter, let's turn off the air conditioner, open the outer loop button. The key is also very fuel-efficient. "Third, turn on the air conditioner on rainy days, adjust the blowing mode to blow on the glass, this way the glass will no longer fog up." And for her final piece of advice, she suggests using the air conditioner during traffic jams to prevent exhaust fumes from entering the car. The video has since amassed a heap of admiration, with one admirer commenting: "Your style is excellent," and another gushing: "Good job everyday! Thank you a lot!" Another cheeky comment from a fan read: "At last, a reason to not go to the repair shop!" Looking for more useful driving hacks? Previously, we revealed how you can master reverse parking in 15 seconds. Helpful TikToker @tonggeshuoche is on a mission to quell that panic, sharing a priceless tip for drivers who encounter this difficulty.