Description
V25 is a premium all-in-one marine diesel fuel treatment designed to improve fuel quality throughout the entire fuel system.
Using advanced surfactant technology combined with lubricity enhancement, V25 conditions fuel from the storage tank through to combustion, helping engines operate more efficiently while reducing deposits, sludge and fuel-related problems.
Unlike many conventional fuel additives, V25 contains no metals, no ash-forming compounds and no hazardous biocides, making it safe for routine use in modern marine diesel engines.
Key Benefits
✔ Improves fuel combustion
✔ Cleans injectors and fuel systems
✔ Helps reduce sludge formation
✔ Improves fuel stability during storage
✔ Enhances lubricity
✔ Assists water separation
✔ Reduces exhaust smoke
✔ Helps lower maintenance costs
✔ Suitable for all marine diesel engines
✔ Safe for continuous use
Recommended Dosage
Routine Treatment: 1 litre of V25 treats up to 10,000 litres of diesel fuel
This 100ml bottle treats: up to 1,000 litres of fuel
Recommended Double Dose
For unknown fuel quality, older stored fuel, higher biodiesel content or contaminated fuel, we recommend a double treatment rate.
100ml treats up to 500 litres
There are no known negative effects from overdosing V25, making double dosing a safe preventative treatment where additional protection is required.
Suitable For
- Motor yachts
- Sailing yachts
- Leisure boats
- Canal boats
- Narrowboats
- Fishing vessels
- Commercial workboats
- Marine generators
Why Choose V25?
Modern marine diesel contains increasing levels of biofuel which can reduce fuel stability and increase the likelihood of deposits, water issues and fuel degradation.
V25 continuously conditions fuel throughout storage and operation, helping maintain cleaner fuel systems, improved combustion and more reliable engine performance.


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