What is IFO 380?

IFO 380, or Intermediate Fuel Oil 380, is a type of bunker fuel commonly used in large marine vessels. It is a residual fuel oil with a maximum viscosity of 380 centistokes at 50°C, making it suitable for use in slow-speed marine engines. IFO 380 is known for its high energy content and is often blended with lighter fuels to meet specific operational requirements. Its use is subject to stringent regulations regarding sulfur content to minimize environmental impact.