MAN Engines approves marine motors for renewable diesel fuel

A work boat engine room (Photo: MAN Engines)

MAN Engines has approved all marine engines from the current product range for use with renewable diesel fuel in line with the standard EN15940 in Europe and the U.S. specification ASTM D975 with immediate effect.

This will allow customers to replace conventional petroleum-based diesel fuel with renewable diesel fuel, which, according to MAN Engines, releases 30 percent fewer particles and 10 percent less NOx emissions.

“With the approval of marine engines for renewable diesel fuel, MAN Engines is making an important contribution to sustainability, both in recreational and professional sailing,” said Claus Benzler, head of the marine division of MAN Engines.

Werner Kübler, head of engineering for MAN Engines, added, “Renewable diesel fuel ensures cleaner combustion with fewer emissions. Despite this, there are neither reductions in performance nor disadvantages with regard to service and maintenance intervals.”

The use of an exhaust gas aftertreatment system also does not have any negative effect on system components or the drive's efficiency if green fuel is used.

Another aspect highlighted by MAN Engines is that the use of renewable diesel fuel does not require any changes to be made to existing vehicles or the refueling infrastructure.

The renewable fuel can be refueled in a pure form, meaning 100 percent renewable diesel fuel without the addition of conventional diesel fuel.

Specifically approved for renewable diesel fuel are the MAN D2862, D2868 and D2676 series with 12, eight and six cylinders, which are used in yachts and sport-fishing boats as well as work boats.

This includes the full MAN marine engine performance range from 200 to 2,000 horsepower. They are operated in line with the emission guidelines issued by the U.S. EPA, the International Maritime Organization or the European Union.