Gas Oil/Heating Oil Specs
| Grade | Main quality constraints | Typical blend |
| UK Gas Oil | Density | 0.82-0.875 |
| Flash | 60 min | |
| Sulphur | 2000ppm wt max | |
| Cloud | -2 max winter, +3 max summer | |
| ULSGO | Density | 0.82-0.835 |
| Flash | 60 min | |
| Sulphur | 50ppm wt max | |
| Cloud | -5 max winter, +3 max summer | |
| FR FOD | Density | 0.83-0.88 |
| Cetane Index | 40 min | |
| Flash | 55 degC min | |
| Sulphur | 2000ppm wt max | |
| Cloud | +2 max | |
| FR SFOD | Density | 0.82-0.86 |
| Cetane Index | 49 min | |
| Flash | 55 degC min | |
| Sulphur | 2000 ppm max | |
| Cloud | -5 max |