Liqui Moly Diesel Purge Injector Cleaner Fuel System Treatment - 1811

Diesel Purge removes deposits on injection nozzles and in the combustion chamber. It boosts the ce...

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B&QB&Q - Diesel Purge Injector Cleaner Fuel System Treatment 4X500Ml
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Product Information

Full details

The Liqui Moly Diesel Purge (1811) is designed for diesel vehicle owners looking to restore engine performance, reduce knocking, and clean critical fuel system components. This potent treatment effectively removes carbon deposits from injection nozzles and the combustion chamber, leading to smoother idling and improved combustion efficiency; however, it requires direct fuel line connection for deep remedial cleaning, which may be more labor-intensive than standard fuel additives.

All features

Model Part Number1811
BrandLiqui Moly

Extended Product Information

FAQs

Can I use this with a Diesel Particulate Filter?

Yes, Liqui Moly 1811 is safe for use in diesel engines equipped with a diesel particulate filter (DPF).

How often should I use Diesel Purge?

It is recommended for use during regular maintenance intervals or when specific fuel system performance issues arise.

Does it work with biodiesel?

Yes, the formula is fully compatible with both conventional diesel and biodiesel fuel blends.

Can I just pour it into the fuel tank?

Yes, that is the standard preventive maintenance method; however, direct-feed application is more effective for remedial cleaning.

Will this help with a failing fuel injector?

It can help clear deposits caused by poor fuel quality or carbon buildup, but it will not fix mechanical failures or damaged injector components.

Is it safe for turbocharged engines?

Yes, it is designed to be safe for all diesel engines, including those equipped with turbochargers.

Troubleshooting

Engine stalls during direct-feed cleaning

Ensure the fuel supply and return lines are fully submerged in the Diesel Purge liquid and that the lines are free of air bubbles.

No noticeable change in engine noise

If preventive additive use showed no results, perform the direct-feed method to deliver a higher concentration of the cleaner directly to the injectors.

Pros and Cons

Pros

  • Significantly reduces engine knocking and rough idling
  • Restores power and combustion efficiency
  • Safe for DPF-equipped engines and turbochargers
  • Versatile application: can be poured in the tank or fed directly to the pump

Cons

  • Direct application method requires mechanical knowledge
  • Not intended for continuous, every-tank use
  • Packaging is a single-use container

Setup, Compatibility & Care

This product is compatible with all conventional diesel and biodiesel fuels. When performing the remedial direct-feed method, ensure the fuel lines are properly disconnected and redirected into the Diesel Purge container, and that no air enters the system. Always follow your vehicle's specific fuel system diagram to ensure correct hose identification. For preventive use, ensure the fuel tank has sufficient space (the product treats up to 75 liters) before pouring. Store in a cool, dry place away from open flames, as diesel additives are highly flammable.

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