Purpose and Specifications

LIQUI MOLY 25046 Marine Super Diesel Additive is a premium fuel treatment designed for marine diesel engines, including pump-nozzle and common rail systems. This 100g tube delivers powerful cleaning that removes deposits from injectors and combustion chambers, boosts cetane for easier starting, smoother running, and lower emissions. It prevents rust and corrosion throughout the fuel system while improving lubrication to cut wear on pumps and injectors. Fully compatible with all diesel and biodiesel fuels, mix 1:500 ratio - one tube treats up to 250 liters of fuel. Benefits last up to 2,000 km or one full season of boating. Operates effectively from -20°C to 50°C, with a shelf life of 3 years unopened.

When to Use / Replace?

Add with every refueling for ongoing protection, especially in humid marine conditions where water contamination risks fuel issues. Use before long storage to prevent aging and oxidation. Replace treatment every 2,000 km or 3 months during active use to maintain peak performance and avoid injector clogs. Ideal for turbocharged engines and safe with catalytic converters and DPF filters.

• Cleans fuel system for better combustion and power
• Protects against corrosion in saltwater environments
• Improves cold starts and reduces smoke