Description:

Shell Alexia 50 is a premium quality cylinder lubricant designed for use in all low speed crosshead diesel engines which burn residual fuel with sulphur content up to 4.0% weight.

It is particularly suitable for the new generation of highly rated, fuel efficient, low speed marine diesel engines operating with higher pressures, higher temperatures and longer strokes.

Shell Alexia 50 is blended from high viscosity index base oils and additive technology developed by Shell.

Performance, Features and Benefits:

•    Improved engine reliability 

Outstanding acid neutralising properties which help to prolong the life of components. 

Minimal deposits on pistons, piston rings, ring grooves, under piston spaces and in cylinder ports. 

Low cylinder and piston ring wear with typical cylinder wear rates below 0.05 mm per 1000 hours due to enhanced boundary lubrication properties. 

•Lower maintenance costs 

Keeps engines exceptionally clean, minimises maintenance requirements and allows the periods between overhauls to be extended. 

•Re-assurance 

Completely stable in storage under all the widely varying conditions encountered aboard ship. 

Proven ability to keep engines clean and control wear & scuffing in the latest engine designs. 

Compatible with all normal oil seal materials. 

•Oil feed rates 

Insufficient cylinder oil feed rates can lead to corrosive wear, seized and broken rings and consequent blow-by and scavenge fire risks, and to the formation of excessive deposits. To obtain optimum performance with Shell Alexia Oil 50 it is important to: 

•Consider using higher rates, especially when running in new liners and/or rings. 
•Equally distribute the oil between injection quills. 
•Ensure the lubricator drive system is well maintained and properly adjusted. 
•Clean and overhaul lubricator boxes according to engine manufacturers' recommendations. 

Application:

•Cylinder lubrication of low speed marine diesel engines which burn residual fuel with a sulphur content of between 1.0 to 4.0% weight.