To use the renewable fuels for marine field is still very limited due to the need of newly developed technology, highly requested safety (for gas fuel) and high price of biodiesel. Therefore, with some advantages, such as: simple producing process, reasonable price and simple modification technology needed, the blended SVO (straight vegetable oil) is recommended as suitable fuel for the marine application.

The fuel consumption in maritime transportation is a big fuel consumer. However, to use and to manage the fuel in maritime transportation field is still not proper to actual expect in many countries including Vietnam. The present fuel management on board ships is only based on the set fuel use norm of a country, but not on the actual operating conditions of ships. Therefore, such management method of fuel is not matched to the target of using efficiently and saving energy, but also creates good conditions for crewmember to pilfer the fuel for private profits.