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%.
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
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
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
|Meets OEM requirements**|
** 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