How to Use Liqui Moly Fuel Injector Cleaner

The liquid moly fuel injector cleaner eradicates deposits on injection valves, spark plugs, intake valves, and in the combustion chamber.

It also gets rid of new deposits that might begin to form. It solves the problem with a rough engine running and maintains all parts of the gasoline injection system.

Using Liqui Moly fuel injector cleaner is a simple process that can help improve your vehicle’s fuel efficiency and overall performance. Liqui Moly offers various fuel system cleaners, so be sure to follow the specific instructions on the product label. However, here are general steps to guide you through the process:

How to Use Liqui Moly Fuel Injector Cleaner

Other Features

  • Protection of the whole fuel system against corrosion
  • Throttle response and compression improvement
  • Gets the emission test values and performance in top shape.
  • Clean engines use less fuel and reduce the pollutant emissions.

ALSO SEE: How to Use Gumout Fuel Injector Cleaner

How to Use Liqui Moly Fuel Injector Cleaner


  1. Add directly into the fuel tank.

Note: A 300ml bottle is enough for 70 l of fuel. Its effect remains for up to  2,000 km. Tested for use with turbochargers and catalytic converters.

Materials You’ll Need:

  1. Liqui Moly Fuel Injector Cleaner (Ensure it’s compatible with your vehicle type and fuel system)
  2. Fuel Additive Funnel (optional but recommended)
  3. Safety Gloves and Eye Protection (for your safety)

Steps to Use Liqui Moly Fuel Injector Cleaner:

  1. Choose the Right Product: Make sure you have the correct Liqui Moly fuel injector cleaner for your vehicle type and fuel system. Read the product label carefully to ensure compatibility.
  2. Prepare Your Vehicle:
    • Park your vehicle in a well-ventilated area, preferably outdoors.
    • Make sure the engine is cool.
  3. Read the Instructions: Carefully read and follow the instructions provided on the product label. Liqui Moly may have specific recommendations for your particular product.
  4. Add the Cleaner to the Fuel Tank:
    • Wear safety gloves and eye protection as a precaution.
    • Open the fuel filler cap to access the fuel tank.
    • Use a fuel additive funnel if available to prevent spillage.
    • Pour the recommended amount of Liqui Moly fuel injector cleaner into your vehicle’s fuel tank. The exact dosage will vary depending on the product and your vehicle’s fuel tank size. Follow the instructions on the product label for the correct amount.
  5. Refuel: After adding the cleaner, refuel your vehicle with fresh gasoline or diesel fuel. This will help ensure that the cleaner is thoroughly mixed with the fuel.
  6. Drive Your Vehicle:
    • Drive your vehicle as you normally would.
    • The cleaner will mix with the fuel and gradually clean your fuel system, including the fuel injectors.
    • Try to drive for a longer duration, such as a highway trip, to allow the cleaner to work through your system more effectively.
  7. Monitor Your Vehicle:
    • Pay attention to how your vehicle performs after using the cleaner. You may notice improved fuel efficiency and smoother engine operation.
    • Some cleaners may require multiple treatments for maximum effectiveness. Follow the manufacturer’s recommendations for repeated use.
  8. Dispose of Packaging: Dispose of the product packaging and any leftover cleaner according to your local regulations for hazardous waste.


Remember that regular maintenance and following your vehicle manufacturer’s recommended service intervals are essential for keeping your fuel system clean and ensuring optimal performance. Liqui Moly fuel injector cleaner is just one part of a comprehensive maintenance routine.

Similar Posts