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BUNKER INDEX :: Price Index, News and Directory Information for the Marine Fuel Industry
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WSS urges operators to perform onboard fuel tests

Onboard tests enable crews to take preventative measures before fuel issues become critical, highlights WSS manager.

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Updated on 09 Feb 2017 07:58 GMT

There are a host of issues, which can arise with both traditional heavy fuels and modern low-sulphur distillates that, if left unchecked, cause significant problems in the engine room.

Water content is a common problem for both fuels, but there are also specific issues associated with the two distinct fuel types - as Jonas Ostlund, Product Marketing Manager, Oil, at Wilhelmsen Ships Service (WSS), explains.

"Heavy fuels are prone to problems with stability and the ominous catalytic fines that wear down engines, even in cases where they are within recommended levels. Whereas marine diesel fuels see an increased risk of microbial contamination and biofouling, along with storage stability and lubricity issues."

Unfortunately, bunkering on-spec fuel is of no consequence, Oslund asserts.

"Many of these inherent issues with fuel do go unnoticed and unattended, as they are not covered by standard fuel specifications. For example, DNV's 2015 report showed that the presence of the biofuel component, which increases the risk of bacterial contamination in fuels, was increasing year-on-year and is now present in over 11 percent of all on-spec fuel," notes Ostlund.

Testing during bunkering is an obvious antidote to such fuel issues, but even this precaution has its flaws, Ostlund says.

"MARPOL-approved testing during bunkering can highlight these problems, but recent estimates suggest just 20 percent of vessels are performing them. Those that do typically can wait up to six days to get the results back from the lab and by then they've been sailing on that fuel for almost a week."

Based on the processing time for fuel tests, Ostlund believes onboard fuel testing is the "quickest, easiest and most cost-effective solution currently available".

In an effort to enable crews to perform tests themselves and get immediate results, WSS supplies a range of different Unitor-branded test kits, which allows them to intervene and take preventative measures, before any issues with fuel become critical.

Though acknowledging that owners and operators are loathed to take on any additional costs in the current climate, Ostlund is adamant that onboard testing is essential.

"For just a couple of hundred dollars a year you can drastically minimise the operational risks we've sadly all become too accustomed to," adds Oslund.

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