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  5. Castrol launches new MHP lubricant range

Castrol launches new MHP lubricant range

New Castrol MHP range offers protection with over 30,000 hours of testing to ensure excellent engine cleanliness and wear protection.

Pangbourne, UK, 16 July 2025

Castrol launches new MHP lubricant range for four-stroke medium speed engines 

 

Castrol, one of the world’s leading lubricant brands, has launched its all-new Castrol MHP lubricant range, intended for use in the next generation of four-stroke medium speed engines operating on distillate fuels.  

 

The new range, consisting of Castrol MHP 1-30 & MHP 1-40, has been reformulated with a lower base number. The new formulation, including specially selected detergents, offers proven oxidation resistance and high detergency performance1.

 

Both formulations are ready and proven for vessels operating on alternative fuels, including LNG, distillate fuel or biofuel. The range has been tested for thermal and oxidation stability and has been shown to provide excellent engine cleanliness2. 

 

In field trials with a leading tugboat owner operating its vessels on a B35 biofuel blend, Castrol MHP has been proven to extend oil drain intervals up to 1,000 hours. The used oil analysis results demonstrated excellent oxidation stability, with base number and viscosity levels remaining well within acceptable limits3. The new MHP range also has excellent wear protection, with wear metal levels all maintained well within safe parameters4.

 

 

Shipping’s new engine technologies and alternative fuels are making it more complex to maintain engine health. New formulations of lubricants, therefore, will play an increasingly important role in ensuring long-term engine health to manage this increasing complexity with confidence. Our new MHP product range, which we are launching today, enables owners and operators to navigate this complexity seamlessly while unlocking the benefits of new technologies.Eda GökayGlobal Marine and Energy Marketing Manager, Castrol

 

The new Castrol MHP range will be available from June 2025 in Singapore and key ports in Europe from August 2025. The range has an approved API CF specification, and the lubricants have also secured major OEM approvals such as Wärtsilä and MAK dual-fuel engines when they are operating on distillate fuel or LNG.  

 

The Castrol MHP range’s new formulation also provides Castrol with the opportunity to expand its product coverage globally. This means Castrol will be able to offer greater supply chain flexibility in collaboration with its customers. The new range is part of Castrol’s updated marine diesel engine cylinder lubricant portfolio, blended using a bespoke formulation developed and tested in-house.  

 

Notes to Editors

1  Based on field trials by major OEMs

2 Tested in field trials with major OEMs

3 Based on a case study from a single customer across engine fleet, using estimate and credible assumptions verified with the customer and market knowledge. Extended Oil Drain Interval is depending on a lot of factors e.g. engine lube oil sump capacity, oil top up rate, maintenance, oil performance, fuel quality, operating condition (load etc.). Therefore the extended oil drain interval performance could vary for different engine. 

4 Castrol MHP Sales Presenter

 

For more information on Castrol MHP, please visit: Medium speed engine oils - MHP

 

About Castrol 
Castrol, one of the world’s leading lubricant brands, has a proud heritage of innovation and fuelling the dreams of pioneers. Our passion for performance, combined with a philosophy of working in partnership, has enabled Castrol to develop lubricants and greases that have been at the heart of numerous technological feats on land, air, sea, and space for over 125 years.

 

Today, Castrol is focusing on sustainability through its PATH360 strategy that sets out aims to help save waste, reduce carbon, and improve lives. 

 

Castrol is part of the bp group and serves customers and consumers in the automotive, marine, industrial and energy sectors. Our branded products are recognized globally for innovation and high performance through our commitment to premium quality and cutting-edge technology.  

 

For more information, please visit: www.castrol.com