Case Study: MAN B&W 6L28/32HP

Overview: MAN B&W 6L28/32HP on a RORO Vehicle Carrier

A client undertook a trial period with our IOW MP400 Centrifuge, which was installed as a retrofit on a MAN B&W 6L28/32HP engine. The objective was to assess the performance differences and determine whether IOW Group's separation capabilities could enhance engine reliability and performance. Prior to the installation of IOW Group's MP400, the engine had been in operation for over 67,000 hours, rendering it highly susceptible to wear and degradation. Consequently, it becomes imperative to remove as much harmful particulates as possible to prolong engine life, as well as extend primary filter life to minimize maintenance requirements.

Wallenius Wilhelmsen's RORO Vehicle Carrier

Installation on a MAN B&W 6L28/32HP Engine

Upgrading the oil filtration system with an IOW MP400 centrifuge is easy and straightforward. They have a bolt-on, bolt-off design to make transitioning to an efficient centrifuge a smooth process. With our CentriClean SCU0002, the client is able to monitor the performance of their MP400 remotely, which other manufacturers are unable to offer. This also provides the scope for engineers to ensure the centrifuge is running as expected and are notified when a service is required to keep operations running smoothly.

Technical details of MP400 installation upon a MAN B&W 6L28/32HP engine

Results

After an initial runtime of 111 hours, the IOW Centrifuge removed a staggering 5,000g of sludge from the engine's lubrication oil, 26mm thick. This is a sludge removal rate of 45g per hour, significantly more than standalone filters. 

Sludge cake removed by an MP400 in 111 hours

The centrifuge was then serviced again at 172 hours. this time removing an impressive 4,500g of soot from the oil. With remoting monitoring, engineers were able to record a RPM 3,816 confirming the centrifuge is running as intended and at optimal efficiency.

IOW Group MP400 installed on a MAN B7W 6L28/32HP engine

Conclusion

In conclusion, the IOW Group Centrifugal Filters provide superior performance, with the MP400 effectively removing 5,000g of sludge from lubrication oil within 111 hours. This results in a cleaner engine, dramatically enhancing operation and efficiency whilst reducing fuel consumption and lowering maintenance costs. Additionally, the reduced sludge accumulation positively impacts the lifespan of the engine and primary filters, further contributing to a substantial return on investment (ROI) for the customer in the long run.


Impressed with these results, the customer has decided to roll out our technology across more vessels within their fleet. 

Large blue and beige car carrier ship

Case Study: YANMAR 8N21L-GV

January 30, 2026
Overview: YANMAR 8N21L-GV A client carried out a trial upgrade on an auxiliary engine lubrication system, replacing an existing GF-2 type centrifugal filter with an MP090 unit supplied by IOW Group. The system operates with a 1,200-litre oil sump capacity, using Shell Argina S240 lubricating oil while running on VLSFO 380 CST fuel. The objective of the trial was to assess whether the MP090 could deliver improved contaminant removal compared with the GF-2, while also introducing remote performance monitoring that had not previously been available
Oil tanker on calm water at sunset, reflecting the colorful sky.

Smarter Filtration for Smarter Ships: The IOW Group Solution Every Superintendent Should Know

January 30, 2026
For today’s marine superintendent, filtration is no longer a background consideration. It’s a direct lever on reliability, cost control, and vessel availability. With tighter schedules, leaner crews, and rising pressure to reduce operating costs, the margin for error has all but disappeared. Every unplanned stop, every premature oil change, every maintenance-heavy system chips away at performance and profit. That’s where smarter filtration earns its place on board.
Engineer in red overalls and hard hat checks equipment in an engine room.

Cut Costs, Reduce Downtime: Why Chief Engineers Are Turning to IOW Group’s Centrifugal Oil Filtration

December 22, 2025
In today’s industrial landscape, where uptime is everything, Chief Engineers are facing growing pressure to keep vital equipment running efficiently while reducing maintenance costs. From marine and power generation to heavy transport and mining, reliability is the cornerstone of performance - and that’s exactly where IOW Group’s Centrifugal Oil Filter is making its mark.
Wire extrusion

How Centrifugal Oil Filtration Improves Efficiency and Reduces Costs in Wire Extrusion

December 19, 2025
In the wire extrusion industry, maintaining clean process oil is critical to ensuring consistent product quality, protecting equipment and minimizing downtime. Contaminants such as carbon, soot, metal fines, and degraded oil by-products can quickly compromise performance, leading to frequent filter changes, increased maintenance, and rising operating costs. Centrifugal oil filtration offers a proven, cost-effective solution to these challenges.
Mobi removes 1,791g of soot from fastener machine

Mobi Removes 1,791g of Soot in 28 Hours!

October 1, 2025
Top Indian Fastening Company Trials Mobi 
MP400

The Importance of Centrifugal Oil Filters in MAN Engine Performance

September 12, 2025
MAN engines are trusted worldwide for their engineering quality, long-lasting durability, and impressive fuel economy. They are used in vessels, power generation, and heavy-duty vehicles across multiple sectors, where dependable performance is essential. To ensure these engines continue running efficiently and to extend their working life, effective oil filtration is critical. One of the most reliable methods available is centrifugal oil filtration, which provides strong protection against wear and helps maintain the smooth, consistent operation of MAN engines. This article explores why this filtration technology plays such a vital role in keeping them at peak performance.
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