10. Use the Recirculate Button Correctly to Save Fuel and Cool Faster
Many drivers leave the AC on fresh air mode constantly. Switch to recirculate (the car-with-arrow icon) on hot days after the initial cool-down. It reuses already-cooled air instead of constantly pulling in hot outside air, so the compressor works less.
You’ll reach a comfortable temperature quicker and use up to 10–15% less fuel on long trips. In winter, it also helps the heater warm up faster. Smart drivers master this button and watch their gas mileage improve without changing anything else about their driving style.
