Chinese ropax shipowner Hainan Strait Shipping has cut maintenance and lubricant cost on six ships after following trunk piston engine oil recommendations from Shell Marine.
The lubricant supplier reports that it has saved the ship operator the equivalent of US$123,000 a year in maintenance and lubricant oil costs by switching the vessels to a combination of Shell Argina S3 40, developed for use with residual fuels, and Shell Gadinia S3 40 oils, for use with distillate fuels with a sulphur content of 1% or lower.
The switch has also improved the longevity of the medium-speed MAN Energy Solutions main and auxiliary engines. The vessels now require routine maintenance only every two years, compared to 20 days a year previously. Lubricant consumption has been reduced by 37% lower.
“The solutions we put forward enabled Hainan Strait Shipping to optimise marine engine performance,” said Shell Marine global general manager Joris van Brussel.
Trials were conducted before the switch using Shell Marine’s engine oil monitoring service Shell LubeMonitor.
China implemented its emission control areas (ECA) from 1 January 2019, with ships sailing within these waters required to burn fuel with a maximum of 0.5% sulphur or use a scrubber. The Hainan Coastal ECA is one such area.
The use of distillate fuels to comply with sulphur regulations, as well as the engine condition strategies recommended for such operation, will be a subject of discussion at the Americas Sulphur Cap 2020 Conference, to be held in Houston on 5-6 March. Book your place now.