Nautical Term: FO (IFO)
Definition of FO (IFO)
Fuel Oil (FO) or Intermediate Fuel Oil refers to the heavy, distilled oils used for propulsion and heating in ships. The term Intermediate FO refers to a type of Fuel Oil with a higher heating value and lower viscosity than standard Fuel Oil, making it suitable for use in intermediate size engines or boilers.
For example, in a cargo ship with an intermediate-sized engine, the crew may opt to use Intermediate Fuel Oil instead of standard Fuel Oil due to its higher heating value and lower viscosity, ensuring the efficient operation of the engine.
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