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10 Best exhaust cleaners of 2026

Explore top picks
  • Best Choice

    1

    Rislone 4784-6PK DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner, 11.8 oz (Pack of 6)
    Rislone
    9.8
    Exceptional

    Rislone 4784-6PK DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner, 11.8 oz (Pack of 6)

    • item weight: 5.92 pounds
    • special features: Concentrated
    • package dimensions: 9.33 x 8.5 x 5.51 inches
    • item model number: 4784-6PK
    • best sellers rank: 9,559 in Automotive See Top 100 in Automotive 26 in Fuel System Cleaners
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  • Value for Money

    2

    Rislone 4720 Cat Complete Fuel, Exhaust and Emissions System Cleaner, 16.9 oz, 3-Pack
    Rislone
    9.6
    Exceptional

    Rislone 4720 Cat Complete Fuel, Exhaust and Emissions System Cleaner, 16.9 oz, 3-Pack

    • item weight: 3.69 pounds
    • special features:N/A
    • package dimensions: 10.67 x 9.53 x 4.13 inches
    • item model number: 4720-3PK
    • best sellers rank: 5,419 in Automotive See Top 100 in Automotive 17 in Fuel System Cleaners

  • 3

    Mothers Exhaust Tip Cleaner & Polish, 8 oz. — Cleans, Polishes & Protects Stainless Steel, Chrome & Black Chrome Tips, Removes Baked-on Carbon, Oxides, Soot & Tarnish, Restores Shine & Luster (05138)
    Mothers
    9.5
    Excellent

    Mothers Exhaust Tip Cleaner & Polish, 8 oz. — Cleans, Polishes & Protects Stainless Steel, Chrome & Black Chrome Tips, Removes Baked-on Carbon, Oxides, Soot & Tarnish, Restores Shine & Luster (05138)

  • 4

    Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz (120007)
    Cataclean
    9.4
    Excellent

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

    • item weight: 13.6 ounces
    • special features:N/A
    • package dimensions:N/A
    • item model number: 120007
    • best sellers rank: 1,521 in Automotive See Top 100 in Automotive 5 in Fuel System Cleaners

  • 5

    Corrosion Technologies Xhaust & Soot Remover, Superconcentrated Cleaner Degreaser For Exhaust Soot, Belly Grime, Brake Dust & Bug Splats, Multi Purpose Aircraft & Fleet Cleaning Solution, 1 Gallon
    Corrosion Technologies
    9.2
    Excellent

    Corrosion Technologies Xhaust & Soot Remover, Superconcentrated Cleaner Degreaser For Exhaust Soot, Belly Grime, Brake Dust & Bug Splats, Multi Purpose Aircraft & Fleet Cleaning Solution, 1 Gallon

    • is discontinued by manufacturer:No
    • product dimensions:6 x 6 x 11 inches 9 Pounds
    • country of origin:USA
    • asin:B08L6YY1VM
    • date first available:October 14, 2020
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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, 16oz - Pack of 2 (120019)
    Cataclean
    9.0
    Excellent

    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)

  • 7

    Dura Lube Severe Catalytic and Exhaust Treatment Cleaner Fuel Additive | 16 Fl oz, 2-Pack
    DURA LUBE
    8.9
    Very Good

    Dura Lube Severe Catalytic and Exhaust Treatment Cleaner Fuel Additive | 16 Fl oz, 2-Pack

    • manufacturer part number: HL-40240-02
    • exterior: Box
    • country of origin: USA
    • customer reviews:4.1 4.1 out of 5 stars 165 ratings 4.1 out of 5 stars
    • asin:B0BS1WMRRS

  • 8

    Rislone 4720 Cat Complete Fuel, Exhaust and Emissions System Cleaner,16.9 oz. | Cleans Catalytic Converter, Reduces Emissions & Saves Gas
    Rislone
    8.8
    Very Good

    Rislone 4720 Cat Complete Fuel, Exhaust and Emissions System Cleaner,16.9 oz. | Cleans Catalytic Converter, Reduces Emissions & Saves Gas

    • item weight:‎1.08 pounds
    • special features:‎50 state legal—EPA registered, Clear OBD P0420 & other OBD codes and turn check engine light off., Deodorizes sulphur “sulfur” (rotten eggs) exhaust smell., Pass emissions smog test, guaranteed.
    • package dimensions:N/A
    • item model number:‎4720
    • best sellers rank:#7,293 in Automotive (See Top 100 in Automotive) #25 in Fuel System Cleaners

  • 9

    3D Grand Blast Engine Degreaser – Heavy Duty Biodegradable Cleaner for Engines, Wheels, Exhausts & More – Fast-Acting, Non-Staining – Made in USA – 1 Gallon
    3D
    8.7
    Very Good

    3D Grand Blast Engine Degreaser – Heavy Duty Biodegradable Cleaner for Engines, Wheels, Exhausts & More – Fast-Acting, Non-Staining – Made in USA – 1 Gallon

    • Application Areas:Engines, Wheels, Exhausts, Undercarriages
    • Form Factor:Liquid Cleaner
    • Biodegradability:Biodegradable
    • Made In:USA
    • Volume:1 Gallon

  • 10

    OXICAT- Oxygen Sensor & Catalytic Converter Cleaner-Engine, Fuel & Exhaust- Pack of 2 FOR PREVENTIVE MAINTENANCE
    AUTOPROFI
    8.6
    Very Good

    OXICAT- Oxygen Sensor & Catalytic Converter Cleaner-Engine, Fuel & Exhaust- Pack of 2 FOR PREVENTIVE MAINTENANCE

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