How much fuel does a 460 horsepower engine consume at idle for one hour?

3 Answers
Haley
07/28/25 5:38pm
This fuel consumption has not been calculated, and it is not recommended for drivers to idle in place. There are no legal regulations regarding this in China, but in many foreign countries, idling for more than 3 minutes to warm up the engine can result in fines, and it also causes significant environmental pollution. Idling in place likely consumes a very small amount of fuel, but it is highly detrimental to both the environment and the vehicle, leading to excessive carbon buildup, which can affect the vehicle's normal operation in the future. Additional information: Modern vehicles display instantaneous fuel consumption on the dashboard to inform the driver of the current fuel usage during movement, but most vehicles do not show instantaneous fuel consumption when idling.
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DakotaLee
08/11/25 9:43pm
The fuel consumption of a 460-horsepower engine at idle for one hour really depends on the specific vehicle and conditions. From my experience in car repair, a high-power gasoline V8 engine typically uses about 2 to 4 liters of fuel at idle, depending on factors like idle RPM, temperature, and whether the air conditioning is on. A 460-horsepower engine is commonly found in pickup trucks or SUVs. If the idle is set at 700-800 RPM with the air conditioning on, fuel consumption might be slightly higher, around 3 liters per hour. However, older engines or cold environments can increase fuel consumption. For accurate data, it's best to use an OBD scanner to measure real-time consumption, rather than guessing, which wastes both time and fuel money. To save on fuel costs, it's advisable to avoid prolonged idling during daily use.
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BriannaDella
09/30/25 2:26am
Question: The thought of a 460-horsepower engine idling for an hour and its fuel consumption made me consider the environmental impact. Idling is really quite wasteful. It's estimated that a large engine idling consumes about 2.5 to 4 liters of fuel, emitting a significant amount of pollutants and carbon dioxide. This accelerates air quality deterioration, especially in large cities where the impact is more pronounced. I believe saving money is secondary; the key is to cultivate good habits such as reducing idling, switching to start-stop systems, or walking for short distances. Over the years, idling consumes a considerable amount of fuel, wasting resources and harming the planet.
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