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938 Injector Intensive Cleaner
938 Injector Intensive Cleaner - 1
938 Injector Intensive Cleaner - 2
938 Injector Intensive Cleaner - 3
938 Injector Intensive Cleaner - 4
938 Injector Intensive Cleaner - 5

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938 Injector Intensive Cleaner

Special intensive cleaning agent with ROA² technology for fuel injection systems in diesel engines. Also removes deposits on injectors that cannot be removed using cleaners added to the fuel tank.

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Available in 2 versions

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ROA² technology

  • Even more powerful cleaning formula based on ROA² technology

  • Deposits on injectors are broken down and cleaned away

  • No need to dismantle the injectors

  • Ensures a consistent injection spray, smooth idling and reduced fuel consumption

  • ROA² level 3: The cleaning action is powerful enough to remove contamination that has accumulated over as many as 80,000 kilometres

  • Properties

  • Enables the injectors to be cleaned directly

  • The injectors do not need to be removed before use

  • Breaks down and removes resin residues and deposits

  • Ensures an even injection spray, smooth idling and reduced fuel consumption

  • Reduces emission values compared to when the system is not clean

  • Application area

  • For problems with contaminated injectors (varnish and resin deposits)

  • Prior to all adjustment work and emissions tests (soot particulates)

  • For diagnostics (exclusion procedure)

  • For all repairs on the diesel injection system

  • For diminished engine performance

  • For increased soot build-up

  • Instructions

    Special tool TUNAP 13310 ICM 2020 must be used to allow the system to be cleaned without dismantling the injectors. Refer to the operating instructions before use.


    For one passenger vehicle (up to 4 cylinders), 1 can of 938 Injector Intensive Cleaning Diesel is required. 6 cylinder and 8 cylinder engines require 2 cans. 10-12 cylinder engines require 3 cans.


  • Only use 938 injector intensive cleaner for diesel engines with the ICM 2020.

  • Regularly using 984 injector direct protection for diesel engines after cleaning also protects against recontamination