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Pangbourne, UK, 5 JULY 2022 - Castrol’s new cylinder oil, Cyltech 40 XDC (eXtra Deposit Control), has successfully attained a Category II No Objection Letter (NOL) from MAN Energy Solutions (MAN ES) after extensive field testing. The new cylinder oil will be available later in 2022. 


MAN ES introduced the new performance category for mark 9 and above 2-stroke engines after these engines were recognised to require cylinder oils with excellent overall performance with a special focus on cleanliness. Category II NOLs were first awarded to the 100BN and 140BN cylinder oils and Castrol has Category II NOLs for Cyltech 100 and Cyltech 140. The introduction of Cyltech 40 XDC completes the portfolio of Cyltech Category II cylinder oils for use across the marine fuel sulphur content range.


The extensive testing on Castrol Cyltech 40 XDC, that included over 2,000 hours running on a MAN BW 7G80ME-C9.2-TII engine burning < 0.5% sulphur VLSFO, confirmed that Castrol Cyltech 40 XDC has excellent overall performance and cleaning ability, making it suitable for all MAN B&W two-stroke engines and recommended for mark 9 and higher using 0 to 0.5% S fuel.


Cassandra Higham, Marketing Director, Global Marine and Energy, at Castrol said: “Gaining confirmation of Cyltech 40 XDC’s performance is another example of Castrol’s ongoing efforts to support customers dealing with industry uncertainties and challenges. Engines are critically important and valuable assets, which is why Castrol experts are accessible to support customers, not only with the right lubricant to protect against engine wear, but also to interpret marine manufacturers’ trends.”


The Castrol Cyltech range has been formulated to protect liners in engines operating under corrosive conditions by keeping liners, pistons and piston rings clean while reducing wear. The range includes options tailored to reduce deposits and prevent hard ash build-up for a variety of steaming conditions and specific fuel sulphur levels.


Higham says that despite the many unknowns relating to the direction of future fuels, optimum engine efficiency, which could be supported by Cyltech 40 XDC, remains a constant requirement in today’s operating environment. “As shipping transitions from a period of relatively predictable, commoditised products to a more complex array of alternative fuels, lubricant choice has reached a new level of importance. Choosing the right lubricant, combined with excellent technical services including scheduling, monitoring and consultancy, can have significant impact in problem solving, realising quantifiable benefits and achieving operational efficiency.”


For more information on Cyltech 40 XDC, visit: castrol.com/marine


For media enquiries please contact: 


Billy Morton

BLUE Communications

T: +44 (0) 7930 211 605

E: Billy.Morton@blue-comms.com

Notes to Editors


About Castrol 


Castrol is one of the world’s leading manufacturers and marketers of premium lubricating oils, greases, metal working fluids, control fluids and related services to automotive, manufacturing, mining, marine, and oil exploration and production customers across the world. Castrol couples high quality lubricant engineering with an expert technical support network and supply capability to deliver quality solutions wherever customers need them. Castrol employs over 7,500 people, it operates directly in more than 80 countries, and is represented by over 2,000 third party distributors. Part of the bp group, the company is headquartered in the UK. 


At the forefront of pioneering technology with its 13 R&D centres globally, Castrol invests every year in research and development of lubricants. Castrol’s global teams of specialists have a deep understanding of what customers need and advise on solutions designed to optimize performance and help improve quality, productivity and the environmental, health and safety profiles of their customers. The brand represents over 100 years’ experience in ‘liquid engineering’: producing advanced lubricants for a wide range of applications, from manufacturing processes and metalworking to mining, shipping and marine activities and energy production. Castrol’s products and services play a critical role in lubricating the global economy through what is mined, made and moved around the world.

Get A Castrol Expert On Board


Castrol has launched a new “Get an expert on board” technical services offering in response to altering customer needs in the marine industry.


The new service, which will place partnership at its core, continues to allow industry access to Castrol’s team of marine experts to provide intelligent insight on areas, including operational performance - anywhere in the world, at any time of the day. Within the simplified three service areas, Castrol experts can be trusted to predict, identify and resolve engine issues, including those directly related to lubricants as well as providing consultative support to resolve wider operational challenges. 


The new offer includes a range of solutions that offer different benefits depending on a fleet’s unique needs. These solutions include Labcheck Auto, Labcheck Value, Labcheck Specialist Condition Monitoring, Labcheck Scavenge Drain Analysis and Labcheck Digital Portal. More information can be accessed via Castrol’s website www.castrol.com/marine