A single mid-range cylinder oil is not the best solution to modern shipping needs, claims Castrol.
Engine cylinders: multi-lube range or replacement costs? Image: Ole Tange |
In a recent interview, Castrol's Technology Manager for Marine and Energy Lubricants, Paul Harrold, stated that while there is a strong temptation to create a single mid-range marine cylinder oil, research showed a range of products was essential.
As well as lab-based research combined with OEM recommendations, feedback from Castrol's large marine customer base has made it clear to the lubes producer that a single solution is not the best for engine safety.
It is certainly no coincidence that the timing of Harrold's comments match the launch of Castrol's new Cyltech 80 AW, an 80 BN option added to its existing range of marine cylinder lubricants.
The introduction of Emission Control Areas (ACAs) and the stresses created by slow steaming were both significant factors in the need to offer different marine cylinder oil products. For ships working predominantly in ECA's a 40BN oil was optimum, 70BN lubes were best for ships mainly working under slow steaming conditions.
According to Harrold, "Slow steaming has complicated traditional assumptions concerning engine performance because marine engines are not designed to operate below 85 percent power for prolonged periods." As well as promoting acid-related corrosion and reduced wear rates, there was also a risk of cold corrosion.
With the price upwards of $1m to replace the liners on a 14-cylinder marine engine, according to Harrold, the price of higher-performing lubricants offered significantly greater savings as well as reducing regular maintenance costs. He went on to clearly state Castrol’s position that: "only by having a comprehensive range of cylinder lubricants to choose from can vessel operators maximize machinery performance and provide the highest margin of safety."