1. For a 400 hp diesel engine operating at full load (100% power output):
- Fuel consumption can range from approximately 20 to 30 gallons per hour (GPH).
2. For a 400 hp diesel engine operating at partial load (50% power output):
- Fuel consumption can be around 10 to 15 GPH.
3. For a 400 hp diesel engine operating at low load (25% power output):
- Fuel consumption can be approximately 5 to 8 GPH.
It's important to note that these are rough estimates and actual fuel consumption may vary based on the specific engine, operating conditions, and fuel properties. Additionally, diesel fuel consumption is usually measured in gallons per hour (GPH) for larger engines used in industrial or marine applications.