Purpose and Specifications

LIQUI MOLY Speed Diesel Additive is a premium diesel fuel treatment designed to clean your fuel system, boost acceleration, and improve overall engine performance. This 1-liter bottle treats up to 400 liters of diesel fuel, making it perfect for regular maintenance in cars, vans, and trucks.

It cleans injection systems and combustion chambers from deposits, restores smoother throttle response especially during partial load driving like city traffic, and reduces friction for quieter, stronger engine operation. Safe for diesel particulate filters, catalytic converters, and all modern turbo diesel engines, it protects against corrosion and wear for longer engine life.

• Cleans fuel injectors and pumps for better fuel atomization and combustion
• Improves acceleration and drivability without changing cetane number
• Reduces fuel consumption by optimizing engine efficiency
• Works in all temperatures from -30°C cold starts to 120°C high-load running

When to Use / Replace?

Add every 2,000 km or with each tank fill-up for preventive care. Ideal if you notice sluggish acceleration, rough idling, or higher fuel use. Shelf life is 3 years unopened; use within 6 months once opened. Continuous use every 2,000 km keeps your diesel engine running like new, preventing costly repairs.

Frequently Asked Questions

Can I use it in my daily diesel car? Yes, it's ideal for everyday driving, improving partial load performance in cars, trucks, and vans with modern emissions systems.

How much do I add per tank? For a full 70-liter tank, use about 250 ml (scale up for 1-liter bottle); it mixes automatically.

Is it safe for DPF and turbo? Fully compatible with diesel particulate filters, turbos, and catalytic converters.