Bunker fuel quality problem

Long story short:there are to usual approaches of dealing with off-spec fuel (besides de-bunkering):

1. Purification - run 2 purifiers (if available) in sequence at minimum possible flow rate and reduced de-sludging period down to 1-hour or less, depends on severity of contamination. Keep close monitoring of recommended purification temperature.
2. Fuel additives. We used Octomar BT-25 and it had showed excellent results. We inspected bunker tanks after applying Octomar and found them in good clean condition. Sludge amount was reduced, combustion improved.

Check more regarding fuel quality parameters.