Purpose and Specifications

LIQUI MOLY 21469 Diesel Multifunction Additive is your all-in-one solution for keeping diesel engines running clean and strong. This 250 ml bottle with dispenser cleans the entire fuel system, boosts cetane for easier starts and smoother operation, and improves fuel lubrication to cut wear on pumps and injectors. It enhances cold weather flow, preventing gelling down to about 5°C below the fuel's normal turbidity point, so your engine starts reliably in chilly conditions above 0°C.

One bottle treats up to 150 liters of diesel at a 1:600 ratio, making it economical for regular use. Add it every 2,000 km to maintain peak performance, lower fuel use, reduce emissions, and protect against corrosion for a longer-lasting engine. Safe for turbo diesels, catalytic converters, and DPF filters.

When to Use / Replace?

• Use every 2,000 km (1,200 miles) or with each fill-up for ongoing cleaning and protection.
• Add before cold snaps, at least 5°C above the fuel's gelling point (ideally over 0°C), to stop wax buildup and ensure smooth winter starts.
• Perfect for low-sulfur diesel; replace bottle after 3-5 years shelf life if unopened, stored cool and dry.