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.

In Vietnam, bio-fuel has been studied and attracted attention of scientists under the concrete support policy from government. Although general diesel engines and especially marine diesel engines are one of main energy consumption factors and influent to environmental pollution, but bio-fuel has been still in theory researches or reached to small production. It leads to very few or nearly empty application of biodiesel in maritime field. Currently, biodiesel has been imported always and it results in high cost in use.