Mobilgard 560 VS

Mobilgard 560 VS

Diesel Engine Cylinder Oil

Mobilgard 560 VS by ExxonMobil is a high performance, marine diesel engine cylinder oil designed for use in crosshead engines running heavy fuel with sulfur levels from 0.5-4%. This new cylinder lubricant technology provides maximum protection from adhesive and corrosive wear at the higher operating temperatures and pressures found in today’s modern crosshead engines. The outstanding performance of Mobilgard 560 VS has been demonstrated at the highest peak firing pressures and liner temperatures.

Mobilgard 560 VS employs additives with greater thermal stability and acid-corrosion protection. It has an optimum viscosity of 20 cSt @ 100ºC and low volatility for optimal lubricant distribution and film retention. Through the use of patented technology, the oil’s higher viscosity is attained without the use of thermally unstable, deposit-producing bright stock. Unique additive technology at the 60 TBN alkalinity level in Mobilgard 560 VS has demonstrated outstanding ring and liner protection and cleanliness under sustained operation with fuel sulphur levels below 1%.

Features and Benefits

Mobilgard 560 VS cylinder oil offers the following features and potential benefits:

Features Advantages and Potential Benefits
Excellent thermal and oxidation stability Helps reduce deposits and sludge formation
Clean engines reduce the lay-up time required for overhauls
Exceptional antiwear properties Reduced liner and ring wear helps promote extended periods between overhauls
Excellent anti-scuffing control
Outstanding detergency capability Excellent engine cleanliness increases combustion efficiency
Helps miminise deposit formation with use of low sulfur (<1%) fuels
High TBN level and retention Effectively handles wide fuel sulfur range from 0.5-4.0% at 70 BN equivalent feed rates
Helps to maximize protection against the corrosive effects of high sulphur fuels


Mobilgard 560 VS has been developed for marine crosshead engines designed for increased power and fuel efficiency. Mobilgard 560 VS has also demonstrated excellent performance in earlier engine designs and during slow speed steaming operation.

Specifications and Approvals

Meets OEM requirements**  
MAN Diesel X
Wartsila X
Mitsubishi X

 ** Please refer to latest service bulletins from MAN Diesel & Turbo and Wartsila Switzerland for lubrication requirements. At the date of print these are MDT: SL2013-571 and Wartsila: RT-148, Issue 1, 2 July 2013

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 0.922
Flash Point, ºC, ASTM D 92 248
Pour Point, ºC, ASTM D 97 -20
cSt, at 40ºC 219
cSt, at 100ºC 20
Viscosity Index, ASTM D 2270 105
TBN, mg KOH/g, ASTM D 2896 60

Health and Safety

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application, following the recommendations provided in the Material Safety Data Sheet (MSDS). MSDSs are available upon request through your sales contract office. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.


It cannot be guaranteed that the product information given above is up to date. For the latest version of the Product Data Sheet we refer to the product library of ExxonMobil.