As global regulations tighten and fuel prices remain volatile, shipping companies everywhere are looking to reduce fuel consumption, cut emissions, and control costs. But in China, the world’s largest trading nation and still a shipowning and shipbuilding powerhouse, the solution is a seemingly simple one, writes Uwe Krüger, joint-Managing Director, CM Technologies.
Rather than relying solely on big-ticket investments like alternative marine fuels or complete engine retrofits, Chinese ship operators are becoming increasingly proficient in measuring, monitoring, and reading the data to optimise engine performance. They see engine optimisation offering a more technically proven and financially attractive pathway to meeting IMO decarbonisation goals.
We are seeing a growing take‑up of engine condition monitoring and fuel testing tools in Asia, largely driven by a mix of compliance pressure and commercial opportunity.
Global decarbonisation rules such as EEXI and CII make it increasingly important for owners to know – and prove – how efficiently their engines are operating, rather than relying on assumptions. Charterers and regulators, especially, are starting to look for hard evidence of environmental performance and fuel efficiency. And monitoring data, backed by analysis, provides the proof ship operators are actively managing emissions.
At the same time, quality lube oil and bunker suppliers are recognising that simply selling their wares is not enough; they are adding test kits to their product range and adding advisory support to create longer‑term, higher‑value relationships with their customers. This is resulting in Chinese fuel and lube suppliers being more able to compete with Western companies, moving up the value chain as technical partners.
Recent market reports suggest that this growing emphasis on testing and data is unfolding against a backdrop of intensifying competition among fuel and lubricant suppliers themselves.
At times throughout 2024 and early 2025, Chinese bunkering hubs, particularly, Zhoushan, offered very-low-sulphur fuel oil below Singapore, traditionally the region’s reference point. These price gaps may not be permanent, but they indicate a market in which Chinese suppliers are increasingly able to compete on commercial terms. And as supplier options widen, shipowners are less willing to rely on assumptions about fuel quality. Regular testing allows operators to verify whether lower-priced bunker delivers the expected engine efficiency in practice, and to quantify the operational impact of fuel variability rather than absorbing it through higher consumption or accelerated wear.
A similar, if more gradual, shift is visible in marine lubricants. Chinese suppliers have been expanding their marine footprints and product availability, positioning themselves more directly alongside established Western brands. While parity remains limited, there are clear signs that suppliers are increasingly recognising the need to complement products with diagnostics and condition insight.
Seen in this light, China’s growing focus on engine and fuel monitoring is not simply a response to regulation or cost pressure. It’s data-driven decision-making that allows shipowners to extract value, manage risk and turn incremental efficiency gains into a sustained operational advantage.
Even small engine efficiency gains from better combustion can translate into huge savings. Certainly, by balancing the engine properly, monitoring combustion performance, checking cylinder condition, and tracking how changes in fuel, lube oil, and engine load affects performance, engine emissions and operational costs can be substantially reduced. Monitoring lube condition also helps avoid engine failure and off‑hire, while extending component life and emergency drydocking. Through life running costs are reduced as a result.
This means CO₂ and other exhaust emissions can be slashed without radical changes in fuel infrastructure. Although, it must be borne in mind that because every engine is different the key is not a single test, but regular testing over time. Because combustion behaviour varies by engine design, operating profile and fuel quality, the greatest value comes not from isolated measurements but from long term trend analysis.
Consistent and fleet wide comparative testing allows technical teams to detect early signs of wear or poor combustion, plan targeted maintenance rather than reactive repairs, and verify that corrective actions are delivering genuine performance improvements.
In general, there is something of a “wake‑up moment” that systematic monitoring of engines and fuels pays off and helps fleet “digitalise” as test results feed into performance dashboards, fuel‑efficiency tracking and ESG reporting.
Importantly, this approach fits well with China’s strengths in data management and digitalisation as test results feed into a broader picture of vessel performance, supporting the move towards smarter, more connected fleets.
We do see Asian shipowners setting higher expectations for performance and reliability, grounded in data, while lube oil and bunker companies are repositioning themselves as technical partners, not just suppliers.
In a global industry, this matters. As Chinese companies and service providers adopt and refine monitoring practices, they help set new benchmarks for what “quality” looks like, not only in Asia but beyond.
Photo credit: CM Technologies
Published: 27 January, 2026