Technical Discussion


  • Ship-owners unaware of fuel & lube oil additives performance results
  • Goran Jonsson
    Pacific Petroleum Ltd.
    GMT 06:47
    2nd May 2007
    The market is full of additives for fuel and lube oil from different manufacturer more or less well-known. Most of the fuel oil additives sold is so called single action additives with a dosage rate 1 liter per MT fuel up to 1 liter per 20 MT. Those additives have as a main function to prevent Vanadium corrosion on piston crowns and exhaust valves. Some additives also claim to reduce soot emission but none of them will really improve the performance and the mechanical efficiency of the engine.

    All sales representatives pushing their products receive a reluctant interest from the technical departments since there have been rather rare results of improvements from those additives.

    However there exist additives on the market improving the general performance of the diesel engines to such degree that beside the technical benefits like Soot reduction 75%, reduced exhaust temperature, reduced carbon deposits and power increase, there is also a significant reduction in fuel consumption.

    Scientific measurements has been performed by the National Technical University of Athens and it was measured a reduced fuel consumption of 3,5% from using “The Fuel additive” and furthermore 4% from using “The lube oil additive”.

    Over 7% total reductions which represent now days $ 25/ MT fuel, while the cost for using those additives is $ 4/MT fuel. Estimate a direct saving $ 20/ MT fuel.

    For a free copy of the research report mentioned above please contact me.



  • Niomar Marcano
    Rooters
    GMT 16:06
    3rd May 2007
    IP: x.x.0.121
    Dear Mr Jonsson,
    7.5% in fuel savings is a significant figure. Are those numbers produced at laboratory scale or in a field test?
    I would like to have a copy of the report. Could you please give your address in order to contact you.

    Best regards,

    Niomar
  • Goran Jonsson
    Pacific Petroleum Ltd.
    GMT 16:27
    3rd May 2007
    IP: x.x.165.35
    Gentlemen:
    Thank you for your interest.

    The test I refer to was made during full operation in a commercial vessel during some 8 weeks. The measurements were made using a computerized diagnostic system when the engines were in full operation with and without additives.

    For the lube oil additives the measurements was made in a laboratory research engine since it is impossible to have an exact reading measuring the effect in a vessel.

    Other measurements have been made by ship owners just by comparing arrival reports from a vessel, for voyages with similar conditions. Those reports show even more positive improvements but are directly related to the technical state of the engines and level of maintenance.

    Give me your email address and we will send you the reports.
    Send your email to: additive@otenet.gr

    Best regards
    Goran Jonsson.
  • Dr. Ram Vis
    Viswa Lab Corp.

    GMT 22:13
    3rd May 2007
    IP: x.x.203.241
    All claims based on additives will have to be verified in independent labs. Please keep this in mind.
  • Goran Jonsson
    Pacific Petroleum Ltd.
    GMT 04:53
    4th May 2007
    IP: x.x.165.35
    Dear Dr. Ram Vis.

    I agree totally, and that is why I refer to the research report issued by
    the most qualified and recognized laboratory in Greece, made in cooperation with a well-known sea line company.

    Any other results from independent customers are subjected to the technical state of the engine and level of maintenance, and can therefore not be used as a scientific controlled reference.

    Best regards
    Goran Jonsson.
  • Par Lundqvist
    Q-comb
    GMT 17:11
    2nd Nov 2007
    IP: x.x.46.73
    Whats the different between soot and coke formation? Any or just the same? If different how can it be two type of "soot" in combustion (in diesel engines slow or medium speed types)comming from the same quality of bunker? If thers soot or coke is there any different how they effect the engine? Can the better MDO in combustion in a diesel engine give any "negative" soot/coke formation? Any differens between a heavy 380 or MDO when it comes to soot or coke?