When you use the coldest setting on your air conditioner, the compressor works harder to cool the air to a lower temperature. This requires more energy and thus uses more gasoline. However, the benefit of using the coldest setting is that the compressor will cycle on and off less frequently, which can actually help you save gas in the long run.
When the compressor cycles on and off, it uses more energy than when it is running continuously. So, by keeping the compressor running continuously on the coldest setting, you can reduce the number of times it cycles on and off, which can help you save gas.
Additionally, using the coldest setting can help you cool your car down more quickly, which means you can turn the air conditioner off sooner. This can also help you save gas in the long run.
