Which Gear Setting Makes the Car Air Conditioning Coolest?

[DeAlyssa]

The higher the gear setting, the cooler it gets. Precautions for using car air conditioning include: 1. Turn off A/C during startup and rapid acceleration: Since the air conditioning (non-independent type) consumes some engine power, it's best to turn off the A/C when starting the car or accelerating rapidly, and turn it back on after the car is moving. This prevents insufficient engine power during acceleration and startup, and also helps save fuel. 2. Control the direction of the air vents: Based on the principle that cold air sinks and hot air rises, when using the air conditioning, direct the vents upward when cooling and downward when heating. 3. Avoid turning on the air conditioning immediately after the car has been exposed to the sun: After prolonged exposure to sunlight, the temperature inside the car is usually very high. In such cases, do not turn on the air conditioning right away. Instead, first open the windows to ventilate and allow the hot air to escape before turning on the air conditioning.