Mobilgard 570 
Diesel Engine Cylinder Oil

Product Description 
Mobilgard 570 by ExxonMobil is a superior quality, extra high performance, marine diesel engine cylinder oil. 
This bold new approach in cylinder lubricant technology provides maximum protection from adhesive and 
corrosive wear at the higher operating temperatures and pressures of today's modern crosshead engines. The 
outstanding performance of Mobilgard 570 has been demonstrated at the highest peak firing pressures and liner 
temperatures.

Mobilgard 570 employs additives with substantially greater thermal stability and superior acid-corrosion protection. 
It has an optimum viscosity of over 20 cSt. at 100oC and low volatility for best lubricant distribution and film 
retention. Through the use of unique formulation technology, the higher viscosity is attained with little or no use 
of thermally less stable, deposit-producing bright stock. Unique technology at the 70 TBN alkalinity level in 
Mobilgard 570 has demonstrated superior ring and liner protection and cleanliness under sustained operation 
with fuel sulphur levels down to 1.5%, but in some cases can be used in lower sulphur applications with the 
approval of the engine manufacturer.

Features and Benefits 
Mobilgard 570 cylinder oil offers the following features and potential benefits:

Features                                                       Advantages and Potential Benefits 
Excellent thermal and oxidation stability                      Reduced deposits and sludge formation Cleaner engine 
                                                               reduces lay-up time required for overhauls 
Exceptional antiwear properties                                Reduced liner and ring wear Excellent anti-scuffing 
                                                               control 
Outstanding detergency capability                              Superior piston and liner cleanliness increases 
                                                               combustion efficiency and extends periods between 
                                                               piston overhauls 
High TBN level and retention                                   Wide fuel sulphur capability Minimises the corrosive 
                                                               effect of high sulphur fuel combustion

Applications