10 Best o2 sensor cleaner additive

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Last Updated: 11-29-2025

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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

9.8

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

AUTOPROFI

9.6

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Best Value

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

MotorPower Care

9.5

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Engine Wizard Catalytic Converter Cleaner & Exhaust System Cleaner | Fuel Additive, Fix P0420/P0430, Clean Oxygen Sensor 2 Packs

Engine Wizard

9.2

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Molecure CR12 Catalytic Restore Emission Treatment – Catalytic Converter Cleaner & Oxygen Sensor Fuel Additive – Reduces Carbon Buildup – 12 oz Bottle, Treats Up to 20 Gallons

Molecure

9.1

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Catalytic Converter Cleaner Pass Emissions Test Cleans, Maintain Catalyst Efficiency Oxygen sensor and combustion chamber cleaner, Safe Fuel Additive

MotorPower Care

8.8

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Solder-It Catalytic Converter Cleaner and Deodorizer (16 fl oz) | Fuel System Cleaner | EGR Valve, Combustion Chamber, and Oxygen Sensor Cleaner | Catalytic Cleaner Fuel Additive for Gasoline Engines

Solder-It

8.6

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Engine Wizard - Catalytic Converter Cleaner & Exhaust System Cleaner | Fuel Additive, Fix P0420/P0430, Clean Oxygen Sensor (1 fl. oz)

Engine Wizard

8.4

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AUTOPROFI OXICAT Oxygen Sensor, Catalytic Converter, & Turbocharger Cleaner for Preventive Maintenance

AUTOPROFI

8.2

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- 25%

STA-BIL Carb/Choke & Parts Cleaner - Safe For Oxygen Sensors - Dissolves Gum, Varnish, Dirt, & Carbon Deposits - Cleans unpainted Metal Parts - High Grade Formula, 12.5 oz (22005)

STA-BIL

8.1

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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)

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

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

Engine Wizard Catalytic Converter Cleaner & Exhaust System Cleaner | Fuel Additive, Fix P0420/P0430, Clean Oxygen Sensor 2 Packs

Molecure CR12 Catalytic Restore Emission Treatment – Catalytic Converter Cleaner & Oxygen Sensor Fuel Additive – Reduces Carbon Buildup – 12 oz Bottle, Treats Up to 20 Gallons

Catalytic Converter Cleaner Pass Emissions Test Cleans, Maintain Catalyst Efficiency Oxygen sensor and combustion chamber cleaner, Safe Fuel Additive

Solder-It Catalytic Converter Cleaner and Deodorizer (16 fl oz) | Fuel System Cleaner | EGR Valve, Combustion Chamber, and Oxygen Sensor Cleaner | Catalytic Cleaner Fuel Additive for Gasoline Engines

Engine Wizard - Catalytic Converter Cleaner & Exhaust System Cleaner | Fuel Additive, Fix P0420/P0430, Clean Oxygen Sensor (1 fl. oz)

AUTOPROFI OXICAT Oxygen Sensor, Catalytic Converter, & Turbocharger Cleaner for Preventive Maintenance

STA-BIL Carb/Choke & Parts Cleaner - Safe For Oxygen Sensors - Dissolves Gum, Varnish, Dirt, & Carbon Deposits - Cleans unpainted Metal Parts - High Grade Formula, 12.5 oz (22005)

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