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Tunap 984 Micro Flex Diesel Treatment / Additive 200ml

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Part Number: MF98400200W3

Tunap 984 Micro Flex Diesel Treatment / Additive 200ml

When used regularly, protects injectors from fuel-induced deposits and lowers fuel consumption and emissions to original factory levels. ROA 2 cleaning technology works directly on the injectors, reducing the risk of costly replacement.

(Reactive Organic Amines Technology)

  • Higher performance cleaning formula based on ROA2 technology.
  • Deposits on injectors are released and cleaned away.
  • Re-contamination is prevented.
  • Excellent dissolution capabilities in all (bio- )diesel mixtures.
  • ROA2 Level 1: The cleaning performance is strong enough to remove dirt that builds up over the course of up to 10,000 miles (or the time between inspections).

Further characteristics

  • Protects against fuel-induced deposits. Reduces fuel consumption and emissions caused by  fuel-related deposits to the original factory condition.
  • Improves combustibility by pushing cetane number into the safe range.
  • Reduces fuel-induced knocking.
  • Gives the fuel age stability, protecting against accumulation of sludge.
  • Suitable for consumer use.


  • For all common rail and pump-nozzle systems.
  • Protects against poor fuel quality.
  • For regular protection after the use of Injector Direct Cleaner MF 989 or Injector Intensive Cleaner MF 938.


Add to fuel tank during yearly inspection. Use the included filling nozzle.

Special precautions: 
MF 984 for up to 80 litres of fuel.


Diesel, Super petrol, E10, B7: The choice at the petrol station is increasingly complex. Internationally varying legislations, highly developed motor technology and increasingly stricter emission standards are the reasons for a reduced harmony between engine and fuel.
The chemical processes in fuel systems generate contamination, deposits, coking and varnish.


  • Increased CO2 emission
  • Increased fuel consumption
  • Susceptibility to faults
  • Expensive repairs


New additive concepts aim less at a Formula 1 feeling but rather at preservation of the fuel system. This includes Keeping the fuel injection nozzle holes, which nowadays have the same diameter as a human hair, free of coking and deposits.
TUNAP fuel and manifold system cleaning products help get you back on the road quickly at economic costs for chemicals and tools and have great potential to generate external economies.

TUNAP Fuel systems:

  • Reliably dissolve deposits and contamination
  • Combine innovative chemistry with specific tool technology
  • Available as problem solver and preventive product


  • Less CO2 emission
  • Lower fuel consumption
  • Fewer repairs
  • Major cost savings
  • Increased customer satisfaction

Customer Reviews

Based on 5 reviews
Stevie Raynor

Fast friendly and good value for money.

Patrick Grady
TUNAP 984 Diesel Treatment

Great item, works quickly, fast delivery.

Graham Knowles
Diesel treatment

Works very well ill recommend it for all diesel drivers thanks

Stuart Gracie

Well recommend fast Post

TUNAP 984 diesel treatment

This is a great product. My engine is running quieter and the milage per gallon has improved. This does what it says it is supposed to do.

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