It’s vital that fuel oil on ships are kept in prime condition, to keep engines running smoothly and efficiently, and to ensure full compliance with environmental and operational regulations.

Many of the problems encountered on board are not related to operation of the engines, but to the fuels used - this clearly underlines the need for fuel treatment to be integrated into the vessel’s maintenance schedules. 

The quality of the residual fuels used by the world’s international trading fleets has been deteriorating over many years. This has largely come about because of secondary refining, a process that concentrates the heavier constituents in the fuel, causing problems with handling and use, and adding costs through the extra maintenance required.

Our Unitor™ FuelPower and Unitor™ DieselPower chemicals tackle these challenges and can be used for distillate fuel treatment and heavy fuel oil treatment. In addition, our fuel test kits enable you to check for bacterial growth, sea/salt water contamination and water contamination in fuel and lubricating oil.

Your Unitor™ FuelPower 'magic potion' is still working wonders and except for some light dust on top, it all looks practically clean even though we lately have been using only 40% on the pump.

Stein Gravdal, Chief Engineer, M/V Tønsberg 


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Featured Offers

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    Fuelpower Soot Remover Liquid Plus

    Newly formulated Unitor™ FuelPower™ Soot Remover Liquid Plus increases the cleaning/maintenance interval for your exhaust gas economizer/boiler from every 3 months to 12–15 months.

  • Dieselpower CFPP offer - Wilhelmsen

    Dieselpower CFPP

    Cold temperatures or climate pose a clear challenge of waxing of your onboard distillate fuels, thus leading to blocked fuel filters / pipelines / equipment or wax settling in fuel in tanks even at temperatures as high as 15°C.

Wilhelmsen insights

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    Fuel oil treatment offers benefits to enhance vessel operational efficiency on road to decarbonization

    With shipping currently responsible for 3% of global GHG emissions, the new EEXI and CII regulations that came into force in January comprise the IMO's short-term measures to address climate change. The aim is to reduce carbon intensity of all vessels with over 5,000 GT in international trading by 40% by 2030 and 70% by 2050 – an ambitious target for the maritime community to pursue.

    Wilhelmsen insights |
    Jonas Östlund, Head of Product Management - Energy Solutions

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    Balancing performance and safe usage of chemical solutions

    Making sure a product performs up to its specifications is critical to ensure performance and safety. By demonstrating stringent and careful product analysis prior to launch, this led us to a unique product innovation while reducing any risks to human health or environment.

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    IMO 2020 - Do we really know what are we getting ourselves into?

    Don’t misunderstand me, I believe it is essential that as an industry we address our environmental impact. But when it comes to the practical realities of meeting the IMO 2020 regulations, are we really that confident that we’re ready?

    Wilhelmsen insights |
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Oil Solutions Range

  • Diesel Oil Bubbles

    Distillate Fuel Treatment

    Distillate fuels are prone to deterioration through temperature and oxidation, contamination from microorganisms and exposure to UV light - which again causes gum formation, sedimentation and colour changes. Unitor's specially designed DieselPower range is perfectly suited to resolve such common challenges for our customers.

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    Heavy Fuel Oil Treatment Chemicals

    Secondary refining process has led to deterioration of residual fuels quality used by trading fleets, leading to marine HFO having heavy metals, impurities, sludge, water and ash. Unitor FuelPower range of treatment chemicals / additives have been specially formulated to tackle these challenges individually.

  • 800X450 - Oil Solutions - Test Kits and Reagents

    Test Kits and Reagents

    It's important to test your fuel to ascertain what the problem is and the type of treatment required. Our range of test kits enable you to check for bacterial growth, sea /salt water contamination and water contamination in lubrication oil.

  • Fuel Oil Treatment Dosing Unit

    Fuel Oil Treatment Equipment

    Our Oil solutions equipment and dosing units cover a range of applications from Fuel Oil treatment to Soot Removal treatment thus, effectively protecting customer’s assets and providing safe, optimised and efficient dosing.

In The News

  • Press release | (Updated )
    Wax Formations

    Sidestepping the sludge – preventing the formation of paraffin wax in low sulphur fuels

    Ultra low sulphur fuels may be the key to compliant operations in Emission Control Areas (ECAs), but they can also open the door to an unwanted, and slimy, guest in your vessels’ engines and fuel tanks. Jonas Ostlund and Sachin Gupta of Wilhelmsen Ships Service (WSS) discuss the cold flow characteristics of distillate fuels and the formation of paraffin wax in cold temperatures.

Need advice?

With offices in 75 countries supporting our non-stop operations in 2 200 port locations across the globe, you can be assured that we have the local knowledge and industry expertise to find the best solution to cater for your needs.