Marine Diesel oil is a middle distillate fuel oil which can contain traces often percent (10%) or more residual fuel oil from transportation contamination and/or heavy fuel oil blending. The MDO does not require heated storage
EESiFlo North America, Terminology and Glossary: Fuel and Oil Terms, Pennsylvania, USA 2002. flowmeterdirectory.com/flowmeter_terminology, (Oil - Amer) {564}