Purpose and Specifications

LIQUI MOLY Diesel Purge is a powerful 500ml fuel additive designed to clean diesel injectors, valves, and combustion chambers. It removes stubborn deposits that cause rough idling, knocking, and poor acceleration, restoring smooth engine performance and better fuel economy. Use it preventively every 10,000 km or during oil changes to keep your diesel engine running like new, or as a shock treatment for troubled engines.

• Eliminates engine knocking and injector noise for quieter operation
• Reduces black smoke and exhaust pollutants, helping pass emissions tests
• Boosts cetane for easier cold starts down to -10°C and stronger power
• Protects fuel system from rust and corrosion for longer life
• Safe for all diesel engines, including turbo, DPF, and catalytic converters

500ml bottle treats up to 70 liters of diesel fuel. Shelf life is 4 years when stored cool and dry.

When to Use / Replace?

Use Diesel Purge every 10,000-20,000 km or 12 months for maintenance, especially with low-quality fuel. For problems like hard starting, smoke, or power loss, apply the intensive method: disconnect fuel line and run engine on pure additive for 20-30 minutes at varying speeds up to 3,000 RPM. Repeat if needed after 500 km. Improves response within one tankful.

FAQ

Can I use Diesel Purge in modern diesel cars with DPF?
Yes, it's fully compatible and helps keep DPF clean by reducing soot buildup, preventing costly repairs.

How often should I add it preventively?
Every 10,000 km or at each service interval to maintain top performance and fuel savings of up to 5%.

Will it fix a clogged injector completely?
It cleans most deposits effectively; for severe cases, use intensively and follow with fresh fuel for best results.