Is it a big deal to occasionally forget to turn off the AC when shutting down the car?

[MacRyder]

Occasional instances have minimal impact. Here are some precautions for using car air conditioning: Turn off the A/C during startup and rapid acceleration: Since the operation of the air conditioning (non-independent type) consumes part of the engine's power, it is advisable to turn off the A/C during vehicle startup and rapid acceleration, and then turn it on after the vehicle starts moving. This prevents insufficient engine power during acceleration and startup while also helping to save fuel. Avoid setting the air conditioning temperature too low: Many drivers prefer setting very low temperatures in summer, thinking it's more comfortable. However, this is a misconception, as an excessive temperature difference between inside and outside the car can easily lead to the driver catching a cold. Additionally, excessively low temperatures may pose a risk of arthritis for passengers. Normally, the temperature inside the car should be about 5°C to 6°C different from the outside temperature.