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10 Best catalytic cleaners of 2025

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  • Best Choice

    1

    Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz - Pack of 2 (120019)
    Cataclean

    Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz - Pack of 2 (120019)

    9.7
    Exceptional
    Our Rating
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  • Value for Money

    2

    Cataclean (120007-2PK) Fuel and Exhaust System Cleaner - 16 fl. oz., (Pack of 2)
    Cataclean

    Cataclean (120007-2PK) Fuel and Exhaust System Cleaner - 16 fl. oz., (Pack of 2)

    9.6
    Exceptional
    Our Rating

  • 3

    Liqui Moly Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber.
    Liqui Moly

    Liqui Moly Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber.

    20% Off
    9.4
    Excellent

  • 4

    2 Pcs Catalytic Converter Cleaner,Auto Parts Engine Auto Parts Engine Cleaner Exhaust System Pipe Carbon Removal Cleaners Treatment Additive Oil for Gas and Diesel Car (1)
    Generic

    2 Pcs Catalytic Converter Cleaner,Auto Parts Engine Auto Parts Engine Cleaner Exhaust System Pipe Carbon Removal Cleaners Treatment Additive Oil for Gas and Diesel Car (1)

    9.3
    Excellent

  • 5

    Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz (120007)
    Cataclean

    Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz (120007)

    11% Off
    9.2
    Excellent
    Our Rating
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  • 6

    Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 8oz (120020CAT)
    Cataclean

    Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 8oz (120020CAT)

    8.9
    Very Good

  • 7

    stray poet 3Pcs Catalytic Converter Cleaner,Catalytic Converter Cleaner Kit,Auto Parts Engine,Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil,Fuel System Treatment Oil Additive
    stray poet

    stray poet 3Pcs Catalytic Converter Cleaner,Catalytic Converter Cleaner Kit,Auto Parts Engine,Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil,Fuel System Treatment Oil Additive

    8.7
    Very Good

  • 8

    2X Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner
    MotorPower Care

    2X Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner

    • Application Method:No disassembly, easy use
    • Performance Improvement:Fix P0420 & P0430
    • Cleaner Function:Clean catalytic converter
    • Fuel Economy:N/A
    • Volume:N/A
    8.6
    Very Good

  • 9

    2 Pcs Catalytic Converter Cleaner Auto Parts Engine, Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil, Fuel System Treatment Oil Additive for Gas and Diesel Car
    Generic

    2 Pcs Catalytic Converter Cleaner Auto Parts Engine, Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil, Fuel System Treatment Oil Additive for Gas and Diesel Car

    8.4
    Good

  • 10

    DURA LUBE 2 Pack Severe Catalytic and Exhaust Treatment Cleaner Fuel Additive, 16 fl. Oz, 2-Pack Combo Pack
    DURA LUBE

    DURA LUBE 2 Pack Severe Catalytic and Exhaust Treatment Cleaner Fuel Additive, 16 fl. Oz, 2-Pack Combo Pack

    • installation:Add to vehicle anytime
    • oem part number:HL-40240-02
    • vehicle fit:Universal fit
    • material:N/A
    • design:N/A
    8.3
    Good