Marine Diesel Fuel Stabilizer
From $109.00 incl. GST
Marine Diesel Fuel stabiliser is the perfect solution for restoring aged diesel fuel and protecting your fuel system from future breakdown. Whether you’re storing your boat or running it regularly, this advanced fuel stabiliser helps keep diesel fuels stable, clean, and ready to perform. It “kills” diesel bug outright and prevents re-contamination.
- Prevents fuel oxidation and fouling deposits
- Protects against rust, corrosion and water-related issues
- Lubricates and cleans fuel injectors; removes carbon and reduces smoke
- Disperses gum and sludge
- Perfect for long-term fuel storage; burns aged or stale fuel cleanly
- Improves engine performance across the full operating range
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Description
Marine Diesel Stabiliser is a fuel stabiliser and biocide that keeps stored boat diesel fresh and ready to run. It kills diesel bug and prevents re-contamination, controls water and corrosion, and cleans injectors of gum, sludge and carbon. It suits standard diesel, biodiesel and ethanol blends. Add it when you fill or refill the tank.
The marine diesel fuel stabiliser keeps stored boat diesel fresh and stable. Stored fuel breaks down over time. Because water, oxidation and microbes attack it, you get blocked injectors and hard starting. This stabiliser stops that breakdown before it starts.
It also kills diesel bug outright and prevents it returning. In addition, it controls moisture, reduces corrosion and disperses gum and sludge. As a result, your fuel system stays clean and your engine starts reliably.
The marine diesel fuel stabiliser suits standard diesel, biodiesel and modern ethanol blends. You simply add it when you fill or refill the tank. After that, let it mix through the fuel system.
- Keep stored or seasonal fuel fresh
- Kill and prevent diesel bug
- Protect injectors from water and corrosion
- Clean gum, sludge and carbon deposits
Whether you store your boat or run it often, treated fuel protects your injectors and fuel system. It is easy to use and economical. Choose the marine diesel fuel stabiliser as part of your marine maintenance routine.
Marine Diesel Stabiliser — keep stored fuel fresh
CEM’s Marine Diesel Stabiliser is a premium diesel fuel stabiliser designed and tested for marine use — boats running standard diesel, biodiesel or modern ethanol blends.
Its concentrated formula makes it easy to use. Simply add Marine Diesel Stabiliser when you fill or refill your tank and let it mix through the fuel system. This keeps stored fuel fresh and stops diesel breaking down over time.
Why fuel condition matters
For boat owners, fuel condition is critical. Poor fuel quality, water contamination and algae growth quickly block injectors, cut performance and lead to costly repairs. This product works to prevent those problems before they start.
Water in diesel engines causes serious issues. Marine Diesel Stabiliser controls moisture, reduces corrosion and stops biological growth forming in the tank. It also cleans existing systems by breaking down sludge, gum and carbon.
The result is a cleaner-running, more reliable engine that performs consistently at sea. Used regularly, it protects your engine, injectors and fuel system long-term — an essential part of your marine maintenance routine.
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Marine Diesel Stabiliser dosage
- Standard dose (1:1200): 1 litre treats 1,200 litres of diesel.
- Double dose (1:600): 1 litre treats 600 litres of diesel — for badly contaminated tanks and long-term storage, to prevent diesel oxidation.
Cworthy Marine — 1991 Fairways 36
1991 Fairways 36 that had a huge fuel bug issue in both tanks. After getting a price for both tanks to be flushed, to get rid of the fuel bug and picking myself off the floor, I decided to add FTC to full tanks of fuel.
The FTC broke down the bug, and separated it from the fuel. This made it very easy to remove the bug contamination, by draining the bottom of the Racor primary filter approx. every 5 hours of running. By the second tank of fuel (with FTC) added there was very little to be drained and now it’s completely clean.
Cworthy Marine — www.cworthymarine.com.au
Phillip Mungoven — CAT 3116
I had a problem with my starboard engine (CAT 3116) blowing smoke. I ran the FTC Decarbonizer through three tanks of fuel and it seems to have fixed the problem. Would recommend it to anyone — great product.
Phillip Mungoven
Marine Diesel Stabiliser – Advanced Diesel Fuel Treatment
Marine Diesel Stabiliser combines the emission-reducing benefits of FTC Decarbonizer with the performance-enhancing properties of CRD Fuel Enhancer. Independently verified under ASTM, ISO 14067:2018, and CMB (AS2077) standards, it ensures cleaner combustion, lower emissions, improved lubricity, reduced wear, and measurable fuel savings. Suitable for all diesel engines, including industrial, commercial, and marine applications.
Complete diesel fuel test results (independent laboratory verification)
| Test Standard | Parameter(s) | Result(s) | Specification / Limit | Status |
|---|---|---|---|---|
| ASTM D975 | Diesel Fuel Specification Compliance | Meets All Requirements | Standard Diesel Fuel Specification | PASS |
| ASTM D5185 | Copper, Iron, Vanadium, Aluminium, Silicon, Sodium, Potassium, Calcium, Magnesium, Phosphorus | <1 ppm (all) | <2 ppm (all) | PASS |
| ASTM D4951 / D2622, ASTM D5453 | Zinc, Sulfur | 0.0008 % (both) | <0.05 % (both) | PASS |
| ASTM D86 | T10, T50, T90, T95 | 225 °C, 270 °C, 326 °C, 340 °C | 200–360 °C | PASS |
| ASTM D4052 | Density @15°C | 838 kg/m³ | 820–860 kg/m³ | PASS |
| ASTM D93 | Flash Point | 75 °C | >61 °C | PASS |
| ASTM D2500 | Cloud Point | 3 °C | Within spec | PASS |
| ASTM D445 / ASTM D6079 | Lubricity (HFRR) | 0.366 mm | <0.520 mm | PASS |
| ASTM D2709 | Water & Sediment | <100 ppm | <200 ppm | PASS |
| ASTM D6469 | Microbial Contamination | <10 CFU/mL | <200 | PASS |
| ASTM D1500 | Colour | L1.5 – Light Amber | Clear to Amber | PASS |
| ASTM D4176 | Visual Appearance | Bright & Clear | No haze / particulates | PASS |
| ISO 4406 | Particulate Cleanliness Code | 17 / 15 / 10 | ≤ 20 / 18 / 15 | PASS |
| ASTM D1094 | Emulsion Test – Fuel & Interface Rating | No Harm | Maintain Base Fuel Rating | PASS |
| ASTM D130 | Copper Corrosion | Class 1 | Base Diesel Class 1 | PASS |
| ASTM D665 | Rust Prevention | No Harm | No Harm | PASS |
| ASTM D613 / D287 | API Gravity, Cetane Index | 37 API, 52.8 CI | 30–45 API, 40–55 CI | PASS |
Summary of findings
- No contamination or microbial activity detected.
- Excellent lubricity (HFRR 0.366 mm) and improved cetane index.
- Meets all ASTM, ISO 14067:2018, and CMB (AS2077) standards.
- Verified by an independent accredited diesel laboratory.
- Combines emissions reduction, improved engine performance, and fuel savings of 5–10%.
Frequently asked questions
Has Marine Diesel Stabiliser been independently tested?
Yes. Marine Diesel Stabiliser has been independently tested by accredited laboratories under ASTM, ISO, and CMB standards, confirming diesel fuel is clean, stable, and delivers verified performance improvements and emissions reductions.
What does independent verification mean?
Independent verification confirms that diesel fuel treated with Marine Diesel Stabiliser meets strict standards for lubricity, cleanliness, carbon footprint, and stability. This ensures scientifically validated performance, demonstrating improved engine performance, reduced emissions, and fuel efficiency gains.
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