Mobilgard™ HSD Plus 15W-40

ExxonMobil marine , Iceland

High Performance Diesel Engine Oil

Product Description

Mobilgard™ HSD+ 15W-40 is an advanced, multi-grade diesel engine oil that help extend engine life and is formulated for severe service high-speed diesel engines in marine applications.


Mobilgard™ HSD+ 15W-40 meets or exceeds many original equipment manufacturer (OEM) requirements and delivers high performance.


 Fully backward compatible, Mobilgard™ HSD+ 15W-40 delivers exceptional performance in both newer and older heavy duty engine designs. Accordingly, these oils meet or exceed the requirements of API CK-4 service categories, as well as key OEM requirements.


Mobilgard™ HSD+ 15W-40 uses a tailored formulation that delivers excellent wear and engine protection, extended drain capability, outstanding high temperature performance and engine cleanliness. Developed in close collaboration with major OEMs, Mobilgard™ HSD+ 15W-40 is recommended for use in a wide range of heavy duty applications and in the most severe marine environments. This product provides outstanding protection in the most demanding diesel engines of Caterpillar, Cummins, Detroit, Mercedes Benz, MAN, Volvo, and others.


Features and Benefits

Mobilgard™ HSD+ 15W-40 is formulated with optimized base oil technology, containing severely hydro-processed base stocks and a tailored additive system to deliver extended performance for up to 50% beyond OEM-recommended oil drain intervals (ODIs)*. This proprietary formulation delivers excellent wear protection, outstanding oxidation stability, and outstanding TBN retention.Mobilgard™ HSD+ 15W-40 also provides outstanding resistance to oil consumption, oxidation, corrosive and abrasive wear, and high temperature deposits.


* Results may vary based on vessel/engine condition, load and environmental conditions. Consult OEM or ExxonMobil before implementing extended ODIs.


The key benefits include:



Advantages and Potential Benefits

Meets demanding specifications of key OEMs

One engine oil for mixed fleet operations

Outstanding oxidation stability

Extended ODI capability. Reduced low temperature sludge build-up and high temperature deposits

Excellent soot and viscosity control

Greater engine efficiency, long engine life and long oil life

Excellent oil consumption control

Lower oil costs due to less make-up oil during operation

Outstanding TBN reserves

Corrosion protection and extended drain intervals for both new and old engines using up to 500 ppm sulphur diesel fuel

Resistance to corrosive and abrasive wear

Long life of critical wear surfaces

Component compatibility

Long gasket and seal life

Low ash formulation meeting API CK-4 requirements

Long emissions aftertreatment life (DPF, DOC and SCR)



• Recommended for the latest heavy duty diesel engines, including those equipped with aftertreatment systems and EGR.

• Provides outstanding performance in the most severe service marine applications of modern high-speed diesel engines

• Recommended for diesel applications using older and naturally aspirated conventional designs.

• Diesel-powered equipment from American, European and Japanese OEMs.


Specifications and Approvals


This product has the following approvals:

Detroit Fluids Specification 93K218

Detroit Detroit Fluids Specification 93K222


MAN M 3575




Cummins CES 20081

Cummins CES 20086


This product is recommended for use in applications requiring:

MAN M 3275-1


This product meets or exceeds the requirements of:


Caterpillar ECF-3


Properties and Specifications




SAE 15W-40

Kinematic Viscosity @ 40 C, mm2/s, ASTM D445


Kinematic Viscosity @ 100 C, mm2/s, ASTM D445


Viscosity Index, ASTM D2270


Density @ 15 C, g/ml, ASTM D1298


Pour Point, °C, ASTM D97


Flash Point, Cleveland Open Cup, °C, ASTM D92


Ash, Sulfated, mass%, ASTM D874


Total Base Number, mgKOH/g, ASTM D2896



Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @

All trademarks used herein are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries unless indicated otherwise.