Fuel changes & protecting your engine

Fuelcare provide a wealth of treatments & services to marine users. As marine fuels reduce sulphur content, increase biodiesel content & engine emissions technology changes, more fuel treatments are required to preserve high fuel quality.

MARPOL Annex VI aims to reduce emissions by reducing the Sulphur content in marine fuels. As of January 2015, the limit of Sulphur in any marine fuel should be 0.1% by mass (previously 4.5%). The limits only pertain to E.C.A.’s (Emission Control Areas). Outside of E.C.A.’s the limits are currently 3.5% but will be 0.5% by January 2020. It is the engineers’ & captains’ responsibility to ensure fuel taken on board meets these limits and other fuels are not mixed with E.C.A. compliant fuels. Emergency engines are exempt.

Sulphur inhibits microbial growth in fuel. The less Sulphur present, the more likely growth to be seen in coming years. This leads to Filter blockages (leading to fuel starvation & engine shutdown), Fuel pump failure, Tank & line corrosion, Reduced fuel stability leading to further tank sludge and fuel discolouration (long chain hydrocarbons / asphaltenes), Vastly reduced lubricity leading to possibly pump system failure & other issues. Processing to remove Sulphur removes other components with natural lubricity, Combustion inefficiency.

Due to these changes and effects, fuel treatments are becoming more prevalent in the marine industry; providing protection against common ailments including microbial growth. Marine fuels suffer more issues due to the naturally higher water content found in and around ships and bunker terminals. FuelClear™ MB15 is a fuel biocide designed over 30 years to prevent and cure these issues.

Further information on Marine changes is available below:

IMarEST (Institute of Marine Engineering)

Energy Institute

Lloyds Register

Marine Products