D6
| Property | Specification |
| Appearance | Dark brown to black liquid |
| Density at 15°C | 0.950 to 1.050 g/cm³ |
| Flash Point | Minimum 60°C |
| Pour Point | Maximum -6°C |
| Viscosity at 50°C | 200 to 700 mm²/s |
| Sulfur Content | Up to 3.5% |
| Water Content | Maximum 0.5% |
| Energy Content | Approximately 40-42 MJ/kg |
| Ash Content | Maximum 0.1% |
| Carbon Residue | Maximum 0.5% |