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添加时间:2012-12-18 10:44:30       浏览次数:464
  详细信息
Product Description

Mobilgard 300 by ExxonMobil is a premium quality, extra high performance system oil designed for crosshead diesel engines. High quality paraffinic base oils along with a balanced additive system provide excellent protection even for the severe operating conditions of the latest design, high-output crosshead marine diesel engines. This product has sufficient alkalinity to neutralise any strong acids which may find their way into the crankcase from the combustion of fuel sulphur, and it has enhanced load carrying ability in order to reduce wear in heavily loaded bearings.



Features and Benefits

Mobilgard 300 is formulated from high quality paraffinic base oils that have excellent thermal stability and oxidation resistance. These base oil characteristics are augmented with a balanced additive system that includes special high temperature oxidation inhibitors, alkaline detergents, a load carrying component and defoamant. The formulation has maximum anti-wear properties, good rust protection in the presence of salt water, and excellent water separation characteristics.

When used as recommended in crosshead type diesel engines, Mobilgard 300 system oil offers the following features and potential benefits:


 


Features

Advantages and Potential Benefits
Improved thermal and oxidation stability Reduced deposits in piston cooling spaces and crankcase
Better piston cooling efficiency
Enhanced detergency Cleaner crankcases and circulation tanks
Excellent rust and corrosion properties Longer bearing life
Protects critical bearing surfaces
Good water tolerance and separation capability Effective lubrication in the presence of water
Longer oil life due to efficient water separation

Applications

 

Mobilgard 300 is recommended primarily for use as system oil in late model, high-output, crosshead diesel engines, especially those engines employing the system oil for piston cooling. It will prevent or reduce deposit formation in the piston cooling spaces, thus maintaining piston cooling efficiency and reducing the incidence of piston top burning and piston crown cracking. It will also prevent or reduce crankcase deposits and will provide outstanding protection for heavily loaded bearings. Its reserve alkalinity allows for the burning of high sulphur fuel. Good rust prevention and water separation characteristics make Mobilgard 300 an excellent system oil in crosshead diesel engines which have water-cooled pistons and where crankcase deposits can be a problem with lower-quality system oils. This oil is also recommended for system use in older design crosshead diesel engines where undercrown or crankcase deposits can be a problem with conventional system oils.





Typical Properties


SAE Grade

30
Specific Gravity at 15ºC 0.889
Flash Point, ºC, ASTM D 92 266
Pour Point, ºC, ASTM D 97 -12
Viscosity, ASTM D 445  
cSt, at 40ºC 111
cSt, at 100ºC 12
Viscosity Index, ASTM D 2270 97
TBN, mg KOH/g, ASTM D 2896 5.0
Sulphated Ash, wt%, ASTM D 874 0.73




Precautions

 

MOBILGARD 300 is manufactured from high quality petroleum base stocks, carefully blended with selected additives. As with all petroleum products, good personal hygiene and careful handling should always be practiced. Avoid prolonged contact to skin, splashing into the eyes, ingestion or vapour inhalation. Please refer to our Imperial Oil Material Safety Data Sheet for further information.

 

 

上一篇: Mobilgard M440
下一篇: Mobilgard M430

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