Does starting the car without driving consume fuel?
2 Answers
In idle state, fuel consumption is not very high, but if the air conditioning cooling function is turned on, the fuel consumption during idle state is relatively high. The following is an introduction related to starting the car without driving: 1. When the engine is in idle state, gasoline does not burn completely, which will lead to an increase in carbon deposits in the engine. Carbon deposits are very harmful to the engine and often appear in the intake tract, valves, throttle, and combustion chamber. 2. If carbon deposits appear in the combustion chamber, it will increase the compression ratio of the combustion chamber, causing engine knocking, reduced engine power, increased fuel consumption, and damage to the engine.
I've done specialized research on this - as long as the engine is running, it definitely consumes fuel. During idle state, the engine maintains around 800 RPM and injects fuel multiple times per minute. Some people think no movement means no fuel consumption, but actually the fuel in the tank keeps decreasing at a rate of about 0.8-1.5 liters per hour. Newer cars actually have higher idle fuel consumption because they need to cool the turbo. Last time I tested my 2.0T with auto start-stop at a traffic light, the fuel gauge dropped noticeably after just half an hour. I recommend not idling beyond 10 minutes - it's both wasteful and causes carbon buildup.
