D6 fuel most frequently quoted are listed below in order of cost, the least expensive first-
* IFO 380 - Intermediate D6 fuel oil with a maximum viscosity of 380
Centistokes
* IFO 180 - Intermediate D6 fuel oil with a maximum viscosity of 180 Centistokes
* LS 380 - Low-sulphur (<1.5%) intermediate D6 fuel oil with a maximum viscosity of 380 Centistokes
* LS 180 - Low-sulphur (<1.5%) intermediate D6 fuel oil with a maximum viscosity of 180 Centistokes
* MDO - Marine diesel oil.
* MGO - Marine gasoil.
1- HSFO with max. 3.5% sulphur (High Sulphur Fuel Oil)
2 - LSFO with max. 1% sulphur (Low Sulphur Fuel Oil)
3 - LSFO with max. 0.5% sulphur (Low Sulphur Fuel Oil)