Field tests proved Mobilgard™ 5100 ability to protect marine engines from cold corrosion and improve overall cleanliness.
The operator of container vessel M/V Tabea, owned by Peter Döhle Schiffahrts-KG, identified that its engine was showing signs of cold corrosion and increased levels of deposits on piston rings. This was a situation that had the potential to get worse, especially when slow steaming. ExxonMobil’s Field Engineering Services team set up a series of field trials to monitor the performance of an industry standard 60 BN cylinder oil and Mobilgard 5100, a 100 BN oil specially formulated to tackle cold corrosion in two-stroke engines.
During the trials cylinders one to five were lubricated with Mobilgard 5100 while cylinders six to ten used the 60 BN oil.
Findings highlighted a discernable difference between the and the 60 BN lubricated units, especially with regards to piston deposits and overall engine cleanliness.Throughout the trials the Mobilgard 5100 units were running cleaner with fewer deposits on all areas of the pistons. Also, Mobilgard 5100 provided effective protection at reduced feeds rates, down to 0.8 g/kWh. The 60 BN oil required a rate of 0.95 g/kWh to achieve a similar result.
Importantly, the results of the trial confirmed the potential for Mobilgard 5100 to counteract cold corrosion. Moreover, the oil offered this protection at lower feed rates, which helped reduce overall spend on cylinder lubrication.
Find out how we can help optimise your vessel’s performance and reliability by contacting an ExxonMobil representative.
This case study is based on the experience of a single customer. Actual results can vary depending upon the type of equipment used and its maintenance, operating conditions and environment, and any prior lubricant used.