Does sleeping in the car with the AC on consume fuel?
2 Answers
Sleeping in the car with the AC on does consume fuel. Here is a detailed explanation of the effects of sleeping in the car with the AC on: 1. Impact of sleeping in the car with the AC on: When the engine is idling, carbon monoxide can accumulate around the car, and the concentration increases over time. If the car is set to external air circulation, a significant amount of carbon monoxide from outside can be drawn into the car, leading to carbon monoxide poisoning. When sleeping in the car for a long time with the windows closed and the AC on internal circulation, the confined space of the car causes the oxygen level inside to decrease due to human respiration, while the carbon dioxide level increases. When the carbon dioxide concentration reaches a certain level, it can cause unconsciousness and brain hypoxia, and in severe cases, death. 2. Measures: Ensure ventilation by opening the windows slightly to allow air circulation. If the AC must be used, it is important to refresh the air inside the car by opening the windows to a width of two to three fingers to maintain proper air circulation.
As a seasoned driver with years of experience, I've personally experienced sleeping in a car with the AC on. This indeed increases fuel consumption because the AC compressor operates directly connected to the engine. If you let the engine idle, the AC will continuously consume fuel, potentially burning an extra 0.5 to 1 liter per hour, depending on the car model and ambient temperature. This isn't a wise choice, especially when parked in an enclosed space, as it can easily lead to carbon monoxide buildup, endangering lives. I recommend not risking sleeping in the car when tired during a trip. Instead, find a safe place to park and rest, such as opening windows for ventilation or using a portable fan to cool down, which saves fuel and ensures safety. In the long run, reducing this habit can also protect your beloved car's engine and your wallet.
