Diesel Brothers

 Fuel Decontamination Specialists – Marine, Heating Oil & On-Site Fuel Systems

Diesel Brothers provide professional fuel decontamination services to remove contamination from diesel and heating oil systems. Contaminated fuel commonly contains diesel bug, water, sludge and other debris, which can lead to repeated filter blockage, loss of power, poor reliability and unexpected breakdowns. Our fuel decontamination process removes contamination from the fuel itself to restore fuel quality.

Contamination removed includes diesel bug, water contamination, sludge, particulate matter, and metallic and ferrous debris. Fuel is cleaned using a multi stage fuel polishing process incorporating fine particulate filtration and magnetic separation as an integral part of the filtration system.

East Anglia Waters | Norfolk | Suffolk | Essex | Cambridgeshire

Why Do I Need Diesel Bug Decontamination?

If left untreated, diesel bug can multiply rapidly within marine fuel systems. This leads to sludge formation, clogged filters, corrosion, and an increased risk of engine failure. Professional decontamination removes existing microbial contamination and reduces the conditions that allow it to return.

With specialist intervention and regular monitoring, fuel quality is maintained, equipment lifespan is extended, and the risk of unplanned downtime is significantly reduced.

Types of Contamination

Diesel Bug

Diesel bug is microbial contamination caused by bacteria and fungi growing in fuel systems. It thrives where diesel and water meet, forming biomass that blocks filters, corrodes tanks, and can lead to engine failure if left untreated.

Moisture

Moisture commonly enters marine fuel systems through condensation, venting, or water ingress. In a marine environment, even small amounts of water can degrade fuel quality, encourage microbial growth, and lead to corrosion within tanks and fuel lines.

Sludge

Sludge is a build-up of degraded diesel, microbial residue, and contaminants that settles in the bottom of marine fuel tanks. It is easily disturbed by vessel movement, leading to blocked filters, fuel starvation, and loss of power when it matters most.

Particulate

Particulate contamination includes rust, sediment, and debris suspended in the fuel. In marine engines, these particles accelerate wear on injectors and fuel components, increasing the risk of breakdowns and reduced engine reliability.

How It Works

1. Assessment

Fuel tanks and fuel condition are assessed to determine contamination levels and treatment requirements.

2. Polishing

Fuel is professionally polished to remove contamination. Where necessary, supporting fuel tank cleaning is carried out to enable effective decontamination. Access points may be required to safely reach internal tank areas.

3. Optional Additives

Optional fuel additives, such as Marine 16, may be applied where appropriate to help reduce the risk of future contamination.

4. Verification

Post-treatment checks confirm that fuel quality has been restored and contamination removed.

How It Benefits You

Minimise Costly Downtime & Disruption

Protect Engines & Fuel System Components

Improve Fuel Reliability & Performance

Reduce The Risk of Further Contamination

Book Your Diesel Bug Treatment Today

Get in touch to schedule your service and protect your equipment.