What is the difference between turning on AC and not turning on AC in summer?

[Jayce]

In summer, the differences between turning on AC and not turning on AC are as follows: 1. Increased fuel consumption: The A/C button controls the car's air conditioning. When the button's light is on, it means the compressor is working, which increases fuel consumption, primarily for cooling and blowing cold air. 2. Reduced engine load: The engine bears a relatively smaller load when AC is off compared to when it is on. 3. Acceleration: The car's acceleration is relatively faster when AC is off. 4. Comfort level differs: When AC is on, the car interior is cooler and more comfortable, while when AC is off, it mainly blows natural air.

[LuciaMarie]

In summer, I often compare the feeling of driving with and without AC. When the AC is on, the compressor kicks in, instantly blowing cold air that quickly cools down the car, making it refreshing and comfortable. Especially on hot days, without AC, just opening the windows lets hot air rush in, making it stuffy, sweaty, and unbearable. The AC also helps dehumidify and prevent fogging, improving air quality. However, it increases fuel consumption by about 10%, affecting your wallet. Without AC, you save fuel, but it can distract you and lead to fatigue while driving. I recommend keeping it on during extreme heat—safety first. Regular maintenance, like changing filters to prevent odors, is essential; otherwise, long-term efficiency drops. Personally, using AC not only boosts comfort but also makes trips safer and more enjoyable.

[VanVera]

Driving with family outings in summer is particularly uncomfortable without turning on the AC when it rains. Once the AC is on, cool air comes out, the kids stop fussing, and the car becomes comfortably cool and safe. Without it, all windows open, letting in hot air full of dust, and the noise is so loud that music becomes inaudible. Although using the AC consumes a bit more fuel, it circulates and filters the air, reducing the risk of allergies. I once didn't turn it on during a scorching day, and my daughter complained of heat and dizziness. Setting the AC to around 25°C provides a cool and energy-efficient environment. Saving fuel by not using the AC sacrifices comfort; on long summer trips, I prioritize turning it on because family comfort is paramount. The AC system also prevents mold, keeping the car interior fresh, making it worth it every time it's turned on.

[StMakayla]

As a car enthusiast, I've observed the key differences between using and not using the AC: Turning on the AC activates the compressor, where refrigerant circulates to create cooling; not using it means only blowing external air, which gets unbearably hot. Using AC increases engine load, raising fuel consumption by 5-10%; not using it but opening windows increases wind resistance, which also consumes more fuel. The AC can cool quickly, but beware of refrigerant leaks and perform regular maintenance. The optimal approach is using auto mode with set temperatures to avoid excessive consumption. When not using AC, I've tried eco-driving, which saves fuel but reduces comfort; using AC improves efficiency, and proper maintenance extends component lifespan. From a technical perspective, the balance lies in high-efficiency settings.