ExxonMobil Residual Marine Fuel Oil (RMFO)

Specifications

Brand

Mobil (ExxonMobil)

Category

Fuels

Availability

On order

Approved for

• ISO

Manufacturer's description

ExxonMobil Residual Marine Fuel Oil (RMFO) is supplied around the world through ExxonMobil's dedicated ExxonMobil Marine Fuels (EMMF) division, covering both fuels produced by ExxonMobil and those acquired for resale by EMMF from other sources. All fuels meet EMMF's own specifications, reviewed regularly to reflect the latest equipment and industry requirements, including standards set by ASTM and ISO. The RMFO range spans grades RMA 10 through RMB 30, RMD 80, RME/RMG 180, RMG 380/500/700 and RMK 380/500/700, differentiated primarily by viscosity at 50°C (from 10 to 700 cSt maximum) and density at 15°C (up to 920-1010 kg/m³ depending on grade). Sulphur content is governed by statutory requirements, while other controlled properties include CCAI (ignition quality), flash point (60°C minimum), acid number, carbon residue, water content, ash, vanadium, sodium and aluminium+silicon (contamination indicators), all specified by grade. Fuels are required to be free of used lubricating oil (ULO), assessed via calcium/zinc and calcium/phosphorus content limits. As with all residual fuel oils, the main hazard is fire; users should keep the fuel away from ignition sources, avoid vapour inhalation and skin contact, and prevent spills from reaching water.

Standards & approvals

• ISO 8217

  Marine fuel specifications

  The ISO standard defining the distillate and residual fuel grades for marine engines; marine engine oils are formulated for fuels in these grades.Source