The food and respiratory needs for the diesel bug (Cladisporium resinae) are supplied by the hydrocarbon fuel and dissolved oxygen in any water that is present. The water generally accumulates due to condensation on tank walls.

As older fungi die, slime is formed that ultimately floats upwards into the fuel leading to blocked filters and narrowing fuel lines. The resulting sludge also produces hydrogen sulphide that corrodes vital engine components such as fuel pumps and injectors.

Fuel Set absorbs any water present. The bug then suffocates and is dissolved allowing it to pass through the filters to be burnt off harmlessly. The bug cannot re-infest when Fuel Set is present in your fuel.

NOTE: Biocide treatment will kill any fungal growth but creates a sudden mass of dead cells, which only adds to the problem. Biocides will not usually remove the water and are generally poisonous and should be handled with great care. To read more about the Biocide Vs Treatment debate, Click here.

To read more about the Bug Click here

To fnd out about the use of biofuel and Ultra Low Sulphur Diesel in coastal and inland waterways, Click here

To see how Practical Boat Owner (May 2011) found Fuel Set to be Best on Test,  read the article here,  and read our comments about the article here.