How much diesel does a 430-horsepower engine consume at idle for one hour?

1 Answers
McGabriel
07/30/25 7:17am
430-horsepower engine consumes approximately 1.5 to 2 liters of diesel per hour at idle. Here are the relevant details: 1. Idle speed is related to engine displacement: Generally, gasoline engines idle at around 800 RPM, while diesel engines idle at about 500 RPM. The higher the engine displacement, the more fuel is consumed per hour at idle. Therefore, when waiting for a long time, it's better to turn off the engine rather than let it idle for extended periods. 2. Hazards of idling: Prolonged idling not only increases fuel consumption but also leads to incomplete combustion of fuel, resulting in carbon deposits. 3. Auto start-stop function: For car owners who are concerned about fuel consumption, they can choose vehicles equipped with an auto start-stop function when purchasing a car. Nowadays, many vehicles come with this feature.
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