De-Bug Clean Fuel Units


All Reports And Endorsements on this website are 100% genuine, written by users without enticement or reward.
All Laboratory Tests, Reports and Endorsements apply only to these products and are protected by Copyright and Trademark Laws.

Shell Deepwater Production U.S. Oil Rig

Four gas turbines used for power generation on an oil rig. These turbines burn 5 gallons per minute per engine when loaded. When a De-Bug Unit was fitted: “… filter usage cost has dropped from $8,000 per year to less than $1,000 per year. We satisfied with the appearance of the fuel we have has no unscheduled engine shutdowns due to clogged filters. The De-Bug Unit has performed as well as we were told it would …”  –  Read Report

Western Mining Corporation Ltd

“In addition to these savings, we are now using around 8% less fuel. TMS is partly from better engine economy and partly from reduced fuel wastage due to bacterial contamination levels” – Read Report

Bowen Tug and Barge - Report from Manager

We had a persistent bug problem in one of our tugs for about 20 years. We don’t know where we picked up this contamination, but once this tug got it – we could not get rid of it. Filters required changing every few days instead of many weeks, heavier exhaust could be easily seen, and power was down for the engine revs. We used biocides, cleaned the tanks, but the bugs would come back. Over time the problem slowly got worse. Eventually the filters required changing after a few hours work. I had heard of the De-Bug Units and set about finding who sold them. 

Finding De-Bug Australia I purchased two L1000 Units and had them fitted to this Tug – Immediately the fuel filters lasted normal service life (much better), the engines ran better, power had returned, they used less fuel, blew less smoke and the were more reliable. Five years later the fuel filters still last months instead of hours, power is still up and exhaust emissions are much less than before the De-Bug was fitted – Read Report

Bowen Tug and Barge - Report from Purchasing and Maintenance Manager

Before fitting the De-Buggers the tug was not running at all well. 

However since fitting the De-Buggers – the fuel problems have been fixed – filters last past normal change over time, engines run smoother, power is better, fuel burn is way down and smoke is reduced. 

After a couple of years of this tug running ‘so well’ we fitted another six tugs with De-Bugs.

We’ve now been using De-Bug Units for 5 years now and I am convinced of how genuinely good they are. We have found, even if there wasn’t any sign of diesel bug, the tugs are all running better, power is up a bit, fuel filter life is also better than normal, engines run smoother and fuel burn is good.

De-Buggers do this without any effort from us, they cost us nothing to operate, there’s nothing to replace, they don’t break and they don’t waste our time – Read Report

Union Rotorua

A merchant vessel operated by Union Shipping of New Zealand, was supplied with over 1000 Tonnes of light marine diesel bunker oil which was found later to be contaminated with Hormonicus Resinae. The bacteria caused severe problems by fouling fuel filters; filter life was reduced from 6-8 weeks to 17 hours.

On fitting two De-Bug L4000 units, the fuel filter life was extended such that frequent and expensive filter changes were no longer required. The two units successfully coped with fuel flow rates of 78 tonnes of fuel every 24 hours. While cleaning of the infected bunkers was still required, the fitting of the De-Bug units allowed this to be scheduled for a convenient time, allowing the vessel to continue a normal trading pattern and generating revenue for its owners. No further problems were reported during the last five years of service that was completed in 1998 – Read Report

Remote Power Stations; Darwin, Australia

Power and Water Authority of the Northern Territory fitted De-Bug units to the fuel systems and recorded increases in fuel filter life from 168 hours to 500 hours. Further trials demonstrated that filter life could be increased well beyond 500 hours  –              Read Report

Ship Control Services - Main engine Pielstick 12 pv v 2.2

A merchant vessel operated by Ship Control Services (PTE) Ltd. of Singapore, had engine exhaust temperatures above the maximum recommended levels.
An L4000 De-Bug unit was fitted which resulted in a reduction of the engine exhaust temperature to within limits. 

In addition, daily fuel oil consumption (for the same shaft revolutions) was reduced from 17.4 metric tonnes to 15.5 metric tonnes – Read Report

Ship Control Services

Genset fuel nozzle ‘trumpeting’ and load fluctuation from poor combustion. 

But no further problems after fitting the De-Bug L1000 Unit – Read Report

RMK Transport

Prior to fitting the De-Bug I was using about 320 litres of diesel on the Cairns – Townsville return run and since fitting the De-Bug the same run is only using about 270 litres of fuel, representing a fuel saving of about 15% – Read Report

Singapore Port Authority - Trail 1

Undertook a trial in one of its vessels and fitted a L1000 De-Bug unit on one of the vessels engines. After fitting, the number of filter changes reduced by 40% compared with the other engine. The other engine was subsequently fitted with a De-Bug unit.
High Speed Catamarans

Operating between Singapore and Malaysia frequently experienced main engine and auxiliary engine stoppages due to heavily clogged water separators and secondary fuel filters resulting from a jelly like growth and the filters had to be replaced every three days.
The operator tried using fuel additives but found the cost prohibitive. In addition to the blocked filters, the operator experienced expensive damage to the fuel pumps and injectors.
Since installing a De-Bug unit, fuel oil filter elements did not have to be changed within the first three months of operation, no further damage was reported and fuel economy was improved. 

Singapore Port Authority - Trial 2

Undertook a trial on three vessels involving the monitoring of fuel consumption (usage per hour).

The two vessels that were known to have higher than normal fuel consumption recorded savings of 20% and the third vessel which had normal fuel consumption returned savings of 15%    

Ray Piper

From the first trip, I noticed a better engine performance. For the first time in my memory, the engines were pulling evenly. They were running cleaner and quieter. There is no smoke at all. Before I had thick black smoke. The engines are really sweet now, and the fuel is crystal clear. Numerous people have commented on my clear fuel. The De-Bug has been on my motors for a year now and I haven t had to change the filter once.

I also have figures to prove that I have greater fuel economy – Read Report

Tropic Star Lodge - 2 Reports

Initial Report 
“Our engines are running cleaner with less downtime for our clients and we have reduced our replacement of fuel filters by more than half. We are also experiencing a reduction in our fuel consumption – Read Report

Follow-up Report
After using for 2 years “…have been using De-Bug Units for over two years on our extensive fleet of yachts, generators, trucks and other vehicles” ” … with the use of De-Bugs, we have increased our engine time between overhauls from 3000 to 4500 hrs with very little mechanical downtime…” – Read Report

Two Trawlers Compared

Trawlers #601 and #608, participated in a comparative trial from December 1995 to June 1996; both were considered identical, except #608 had a De-Bug unit. fitted. The two trawlers left Korea the same day to operate off the coast of Portland, Oregon, USA. Against the background of similar operating hours and total loading on the engines, the trial demonstrated:

1. Fuel saving of nearly 20%
2. Nozzle life per running engine increased on average by 25% – Read Report

Inconnu 60' Vessel

60′ Vessel for crab and lobster fishing off the Channel Islands experienced fuel starvation due to filter blockage. The problem became so severe that the filters were being replaced every day. Treating the fuel with Biocide only increased filter life to two days! Upon fitting a De-Bug unit, the contamination problem was eradicated and filter life increased to 40 days. The owner also dispensed with using expensive chemicals – Read Report

Norna - Scottish Fisheries Protection Vessel

This vessel experienced microbial spoilage in the diesel fuel header tank, and during bad weather, a build up of a sludge type biomass in the fuel feed line to the purifier halving its capacity from 1 tonne per hour to 0.5 tonnes per hour. In addition, the fuel strainers on the feed lines to the twin 3,000 HP engines had to be cleaned every ten days to prevent fuel starvation.
After fitting of an L4000 De-Bug Unit, restrictions were eliminated and the cleaning cycle for the engine strainers was increased to ten weeks; a sevenfold increase in life.


  • Multiple Separate Independent Laboratory Tests,
  • Endorsed By Client’s Engineers,
  • Reduces Fuel Burn, Filter Use, And Maintenance Costs,
  • Reduces Pollution,
  • Buy Once, No additives, No Disposable Items, No Cost Of Ownership,
  • Reduces Pollution, 
  • De-Bug Units last 12 years,
  • Time-Proven Over 32 Years Of Continuous Production,
  • Effective Return On Investment,
  • Approved for use by Cummins, MTU, Detroit, Volvo, Caterpillar, Solar Turbines, GEC Alsthom Diesels.

Copyright 2002 to 2024: De-Bug Australia, Morison & Morison Pty Ltd.