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Mobilgard™ DEO Series
Mobilgard™ DEO Series heavy-duty oils are formulated for use in high-speed diesel engines operating in severe-service marine applications. They are especially suitable for tugboats and fishing vessels operating previous-generation engine designs.
The high-performance monograde oils are created with high-quality base stocks and a balanced additive system, helping ensure thermal and oxidative stability, good detergency/dispersancy and stay-in-grade shear stability. Depending on operating conditions, the series can help to:
- Control deposit formation
- Minimise component wear
- Extend engine life
Mobilgard DEO Series is suitable for applications where a monograde lubricant is recommended requiring API CF or API CD.
View all products in high-speed engine oils
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Data Sheet
Product data sheet (PDS) 
Safety data sheet (SDS) Product Information
Mobilgard DEO performance profile
Technical resources
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Learn about five different circumstances related to switching and mixing ExxonMobil marine lubricants.
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Learn more about best practices for handling, storing and dispending ExxonMobil marine lubricants
Features and Benefits
|
Features |
Advantages and Potential Benefits |
|
Extended TBN reserve |
Protects engine parts from corrosive wear and deposits Controls formation of acids when using higher sulfur fuels |
|
Good protection against oil thickening and sludge built-up |
Prolonged engine life |
|
Increased high temp/high shear performance |
Reduced engine scuffing, bore polishing and ring sticking |
|
Excellent thermal and oxidation stability |
Keeps engines clean and operating smoothly |
Specifications and Approvals
|
This product is recommended for use in applications requiring: |
MOBILGARD DEO 30 |
MOBILGARD DEO 40 |
|
API CD |
X |
X |
|
API CF |
X |
X |
Applications
- Mobilgard DEO Series are designed to provide superior performance in severe marine applications, especially for older and reconditioned marine high speed diesel engines. Mobilgard ™ DEO Series are used in engines where a monograde lubricant is recommended requiring API CF or CD.
Typical Properties
|
Property |
MOBILGARD DEO 30 |
MOBILGARD DEO 40 |
|
Grade |
SAE 30 |
SAE 40 |
|
Ash, Sulfated, mass%, ASTM D874 |
1.1 |
1.1 |
|
Density @ 15 C, g/cm3, ASTM D4052 |
0.89 |
0.9 |
|
Flash Point, Cleveland Open Cup, °C, ASTM D92 |
256 |
254 |
|
Kinematic Viscosity @ 100 C, mm2/s, ASTM D445 |
11.8 |
14.6 |
|
Kinematic Viscosity @ 40 C, mm2/s, ASTM D445 |
106 |
146 |
|
Pour Point, °C, ASTM D97 |
-21 |
-21 |
|
Total Base Number, mgKOH/g, ASTM D2896 |
10.1 |
10.1 |
|
Viscosity Index, ASTM D2270 |
99 |
99 |
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