Related product

MobilGard™ advantages

MobilGard™ is the flagship of marine engine oils from ExxonMobil. It is supported by over 60 years of engineering excellence and lubrication technology.

Learn more
Contact an expert

Product Information

   Mobilgard™ 525 performance profile 656.936 KB/pdf
Download Share

Technical resources

Storage and handling: Best practices and guidelines for marine lubricants

Learn more about best practices for handling, storing and dispending ExxonMobil marine lubricants.

Applications

  • Combats the deposits and scuffing related engine wear associated with low sulphur fuels
  • Excellent thermal and oxidative stability to ensure performance in a variety of engine conditions
  • Formulated with detergent technology required to deliver excellent performance with low-sulphur fuel
  • Detergency system provides strong control of piston groove deposits which is a critical area for distillate fuel operation

Applications

  • Marine crosshead engines designed for increased power and fuel efficiency
  • Earlier engine designs and engines in slow speed steaming operation

Specifications and Approvals

Mobilgard 525 has the following builder approvals
MAN Diesel

X

Wartsila

X

** Please refer to latest service bulletins from MAN Diesel & Turbo and Wartsila Switzerland for lubrication requirements.

To ensure achieving the maximum equipment life possible as well as appropriate feedrates, particular attention should be paid to the manufacturer's special recommendations as published in the references as above or any other future manufacturer’s instructions.

Typical Properties

SAE Grade
50
Specific Gravity at 15ºC 0.909
Flash Point, ºC, ASTM D 92 286
Pour Point, ºC, ASTM D 97 -9
cSt, at 40ºC 226
cSt, at 100ºC 20
Viscosity Index, ASTM D 2270 102
TBN, mg KOH/g, ASTM D 2896 25
  • MAN
  • Wartsila
  • Deep Sea Shipping Industry
  • Faith containership ship in harbor

    Lubricants port directory

    Use the lubricants ports and services directory to view our offer.

    Learn more
  • heartbeat with a boat shape

    Mobil Serv℠ Cylinder Condition Monitoring

    Mobil Serv Cylinder Condition Monitoring acts as a heart rate monitor for your fleet, providing instant oil analysis results at sea to help reduce costs, crew hours and downtime.

    Learn more
  • Cruise ship heading to open water

    ExxonMobil Premium HDME 50™ fuel

    This fuel was developed to meet Emission Control Area (ECA) requirements and can help reduce operational complexity.

    Learn more
  • Gemini cruise ship

    Mobilgard™ M40 Series diesel engine oils

    Mobilgard™ M40 Series are extra-high-performance 40 TBN engine oils designed for use in the most severe residual-fuelled medium-speed diesel applications.

    Learn more
  • Chulan tanker ship viewed from a distance

    Mobilgard™ ADL Series engine oils

    Mobilgard™ ADL Series oils have been designed for high Brake Mean Effective Pressure (BMEP) medium- and high-speed diesel engines operating on distillate fuels.

    Learn more
Loading