Purpose and Specifications

LIQUI MOLY Super Diesel Additive (5120) is a premium 250 ml fuel treatment that cleans your diesel engine's injectors and fuel system, boosts cetane for smoother starts, protects against corrosion, and improves fuel economy. Add one can to up to 75 liters of low-sulfur diesel at a 1:300 ratio for optimal performance in cars, trucks, and machinery.

• Cleans injectors every 2,000 km to remove deposits and prevent gumming
• Boosts cetane for better cold starts and quieter running
• Enhances lubrication to reduce wear in modern high-pressure engines
• Lowers emissions with complete combustion and catalytic converter safe
• Shelf stable for years when stored cool and dry

When to Use / Replace?

Use every 2,000 km or with each fill-up for continuous protection, especially in high-mileage vehicles over 10,000 km or during cold weather below 0°C. For engine storage, add 1% to fuel to prevent corrosion over months. Replace by checking expiration on can, typically 3-5 years from manufacture.

FAQ

Is it safe for all diesel engines? Yes, tested for turbochargers, catalytic converters, and high-pressure systems in cars, trucks, and tractors.

How much fuel economy gain? Users report smoother power and up to 5% better mileage after regular use every 2,000 km.

Can I use it year-round? Absolutely, ideal for low-sulfur fuels to maintain cleanliness from -20°C cold starts to hot summer runs.