
MGO and MDO Marine Fuels: Differences, ISO 8217 Grades, and MARPOL Compliance
MGO MDO ISO 8217 grade DMA DMB / DMZ Composition Pure distillate Distillate + residual blend Max viscosity 6.0 cSt at 40°C 11.0 cSt at 40°C ECA compliant? Yes (DMA) DMZ only (≤0.10% S) Heating required No No Typical use ECAs, small vessels, modern eco-ships Ocean passages, older engines Quick Reference: MGO vs MDO MGO…



