Yes, according to the Department of Energy, air conditioning can reduce a conventional vehicle’s fuel economy by more than 25% under very hot conditions, particularly on short trips. Other vehicle types, like hybrids and EVs, can see an even larger percentage.
Air conditioning tips for fuel consumption
Here are some tips to help you balance your fuel consumption with comfort.
Use AC Wisely
If temperatures outside the car are pleasant, open the windows and let your car cool down for a few minutes before using the air conditioning. Drivers can also keep the AC on low to keep a comfortable flow of air in the car.
Park in Shaded Areas
Your air conditioner works the hardest when your car is the hottest. Take steps to reduce your need to run the AC on full blast for long periods by parking in the shade or using a sun visor. This will give you a start on keeping your car cool and will reduce the time you have to run the AC on its max settings. 
Consider Other Options on Saving Fuel
If you’re concerned about fuel efficiency, try these tips for driving smarter, including using cruise control when possible.
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