MAN Energy Solutions’ after-sales brand MAN PrimeServ is offering its customers the opportunity to retrofit older MAN 48/60 marine and power-plant engines.
The company offers them to convert in to MAN 51/60 types to prepare older engines already in service for future, climate-neutral operation.
Converted engines will effectively be equivalent technically to newly built MAN 51/60 units. As a further option, newly converted engines can be upgraded for operation on synthetic fuels for a low premium.
MAN PrimeServ has already successfully completed the first lifecycle upgrade for a southern European customer, converting an MAN 18V48/60A power-plant engine with over 100,000 operating hours to a modern MAN 18V51/60 unit.
MAN Energy Solutions reports that calculations based on an exemplary business case have shown that upgrading a 9L48/60 engine to a 9L51/60 type can save around 500 tons of fuel and 25 tons of lubricating oil per annum – based on an annual operating time of 6,000 hours under full load.

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