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What is the Relationship Between Car Air Conditioning and Fuel Consumption?

1 Answers

VonClayton

07/30/25 9:51am

Under normal circumstances, car air conditioning accounts for about 20% of the engine's power. This means that for a car with an average fuel consumption of 10 liters per 100 kilometers, using the air conditioning in summer can increase fuel consumption by approximately 2 liters. The exact value can be calculated based on the vehicle's engine fuel consumption. Here are some precautions for using car air conditioning: 1. Large temperature differences can easily cause colds: The comfortable temperature inside the car should be about 5 degrees lower than the outside temperature. For example, if the outside temperature is 35 degrees, the air conditioning should ideally be set to around 30 degrees. Even if set to 18 or 20 degrees, the actual cooling capacity of the air conditioning may not reach that level. Instead, a large temperature difference can cause discomfort to passengers due to the contrast between hot and cold, leading to colds or fever. 2. Use both internal and external circulation modes: Some car owners may use the internal circulation mode for extended periods to enhance the cooling or heating effect of the air conditioning. In this mode, the air inside the cabin does not naturally exchange with the outside air, making the cabin a sealed and isolated space. While this maximizes the air conditioning's efficiency, it is not suitable for prolonged use. It is necessary to switch between internal and external circulation modes; otherwise, it may cause dizziness or chest tightness among passengers, potentially leading to dangerous situations.

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Does it matter if a piece of the tire's outer surface is broken?

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Can Tires Really Last 7 or 8 Years?

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