1. Don’t Precool Your Car

• Why: AC systems work more efficiently when the car is moving, as the engine drives the AC compressor faster.
• What to Do:
• Start driving before turning on the AC.
• Open windows for 10–20 seconds to vent hot air, then close them to let the AC work.

2. Set to the Lowest Temperature

• Why: Cooling air to 38°F is standard for most systems. Setting a higher temp makes the system reheat cooled air, which wastes fuel.
• What to Do:
• Set the AC to its lowest temp and adjust the fan speed to control comfort.

3. Avoid Recirculation Mode

• Why: Recirculating air keeps the front seats cool but can make the back seats hot and stuffy.
• What to Do:
• Turn off recirculation mode when traveling with rear-seat passengers.

4. Disable Stop/Start Systems

• Why: Stop/start systems can prevent the AC compressor from running when the engine shuts off, leading to less cooling in stop-and-go traffic.
• What to Do:
• Turn off auto stop/start in extreme heat for consistent cooling.

5. Check Your Cabin Air Filter

• Why: A dirty filter restricts airflow, reducing the AC system's efficiency.
• What to Do:
• Inspect and replace your cabin air filter regularly. Many filters are accessible behind the glove box and easy to change yourself.

Bonus Tips

For Automatic Climate Control

• Use it efficiently: Set your desired temp and let the system handle adjustments for optimal cooling.

For Electric Vehicles

• No worries about range: Using AC in warm weather has minimal impact on range. Enjoy staying cool without range anxiety.

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