Next-day UK delivery available
Order before 3pm — from £3.95
Same-day collection
Available from our North Shields store
Free returns within 30 days
Unused & original packaging
Marine 16
Marine 16 Diesel Bug Treatment
Powerful fuel biocide that kills diesel bug and protects your engine from contamination.
£22.50
Tax included. View shipping policy
Next-day UK delivery available — order before 3pm
Same-day collection from our North Shields store
Expert advice — call 0191 414 0065
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Marine 16 Diesel Bug Treatment is a highly effective biocide formulated to eliminate and prevent microbial contamination (diesel bug) in fuel tanks. It works throughout the fuel system to restore clean, reliable fuel and protect engine performance.
Key benefits
- Kills bacteria, fungi, and yeasts that cause diesel bug
- Disperses in both fuel and water phases for full tank treatment
- Preventative and curative (can treat active contamination)
- Long-lasting protection for up to 12 months in normal conditions
- Safe to use—overdosing will not harm engines
- Widely used in professional marine services (RNLI, Royal Marines)
Ideal for
- Treating contaminated diesel fuel systems
- Preventative dosing during fuel fill-ups
- Seasonal boat lay-up and storage
- Engines showing filter blockages or fuel issues
Pro tip: If you suspect diesel bug, treat the fuel and change your fuel filter—dead contamination often gets trapped in the filter shortly after dosing.
Marine 16 Diesel Bug Treatment effectively eliminates microbial contamination in diesel fuel, preventing engine damage and ensuring optimal performance. Ideal for boats, it safeguards fuel systems by inhibiting sludge and sediment accumulation.
Next-day UK delivery
Available on most items — order before 3pm. From £3.95.
Same-day collection — North Shields
Order online or call ahead — collect from our North Shields store today.
Free delivery over £100
Free standard delivery on all qualifying orders to UK mainland addresses.
Returns — 30 days
Unused, original packaging. Full returns policy →
Not sure which product you need? Call our team on 0191 414 0065
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Why buy from Marine Chandlery?
- UK marine specialists, based in North Shields
- Next-day UK delivery available
- Same-day collection from our store
- Expert advice before and after purchase
- Carefully selected marine-grade products
- Secure checkout & trusted payment options
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