Costamare triples piston overhaul interval

Athens-based Costamare Shipping, with the help of ExxonMobil, has extended Cosco Yantian’s piston ring replacement period to more than 55,000 hours – a move that will help reduce costs and optimise vessel performance.

This was achieved by switching the container vessel to ExxonMobil’s Mobilgard 570 cylinder oil in combination with the MobilGard Cylinder Condition Monitoring (CCM) programme. The expected piston overhaul interval for the Cosco Yantian’s MAN Diesel & Turbo 12K98MC MK7 engine was 16,000 hours of unmonitored operation.

“Cosco Yantian’s piston overhaul intervals were extended by 250%, with wear measurements sitting well within acceptable parameters after more than 55,000 hours of operation,” said Iain White, field marketing manager, marine fuels and lubricants, ExxonMobil.

“By combining Mobilgard 570 with MobilGard CCM, Costamare Shipping was able to realise considerable financial benefits,” he added.

As a result of the switch, the piston ring replacement period was extended to more than 55,000 hours while liner wear rates were greatly improved compared with engine builder expectations. Costamare says this is particularly good since Cosco Yantian, which operates globally, had been slow steaming in the 10-40%load range, resulting in severe engine operating conditions.

Mobilgard 570 is a cylinder oil that has been designed with anti-wear properties to help extend piston ring and liner life. MobilGard CCM is said to help operators identify the most appropriate cylinder oil products, optimise engine feed rates and extend piston overhaul periods through a combination of on-board tests and full laboratory analysis to give real time and comprehensive data on cylinder operating conditions.


Vickers Oils are pleased to welcome Ian Bower, Business Development Manager and Esther Murray

Vickers Oils are pleased to welcome Ian Bower, Business Development Manager and Esther Murray, Marke... Read more


After replacing the all-rubber cutlass bearing of his new Jeanneau Sun Fast 35 Tide The Knot a frust... Read more


A mid-ocean loss of steerage due to a faulty rudder bearing wasn't a scenario Luke Fisher wanted to ... Read more

Experts Highlight Viable Power and Propulsion Solutions for Next Generation Vessels

Lithium-ion battery expert Dr John Warner is presenting at the NEXT GENERATION Marine Power & Propul... Read more

AtZ add stabilizer repair and maintenance to their comprehensive portfolio of marine engineering solutions

Customers within the leisure cruise, naval and passenger ferry industries, are heavily reliant on co... Read more

Mercator Media upgrades magazines and conferences brands

February 2018 Fareham UK - Mercator Media Ltd, the international, market-leading B2B marine media bu... Read more

View all