MotorPower Care Catalytic Converter Cleaner 2-Pack — 8.45 fl oz Each, Cleans O2 Sensors & Helps Fix P0420/P0430

This two-bottle kit contains two 8.45 fl oz treatments formulated to be added to a full tank of gasoline to clean O2 sensor deposits, EGR-related buildup, and catalytic converter-blocking carbon. The formula works in the fuel system and exhaust pathway while your engine runs, aiming to restore exhaust flow and sensor readings without disassembly. It’s compatible with most gasoline and hybrid vehicles; it is not a repair for physically damaged catalytic converters.

How does this cleaner help my car pass a smog or emissions test?

The additive targets deposits that interfere with catalytic converter activity and oxygen sensor signals, which are common reasons for failed emissions tests. By reducing soot and carbon on catalyst surfaces and sensors, the cleaner can improve emissions readings and reduce the chance of a marginal fail on test day.

• Use one 8.45 fl oz bottle per full tank as directed for best effect.
• Works while driving—no mechanic disassembly required.
• Formulated to reduce carbon on O2 sensors and internal catalyst surfaces.

Will this product fix P0420 or P0430 check engine light codes?

The product is intended to address emissions-related sensor readings that commonly trigger P0420/P0430 codes by cleaning residue that skews oxygen sensor and catalyst efficiency measurements. It can resolve codes caused by contamination or buildup, but it cannot repair codes originating from mechanical damage or internal catalyst failure.

• May clear codes caused by carbon/oil deposits and rich-running residue.
• Not a solution for cracked, melted, or internally broken catalytic converters.
• Follow up with a drive cycle and a diagnostic scan to confirm code status.

How do I use the MotorPower Care Catalytic Converter Cleaner safely and effectively?

Add one bottle to a full tank of gasoline before driving; the fuel dilution helps distribute the formula through the fuel system and exhaust. For stubborn buildup or to increase chances of improvement, use both bottles across consecutive full tanks as described by the instructions.

• Pour each 8.45 fl oz bottle into a full tank of gasoline per label directions.
• Drive normally for at least one full tank to allow cleaning action throughout the system.
• Do not use if the catalytic converter is visibly damaged or melting; see a mechanic instead.

What vehicles are compatible and are there any precautions?

The formula is suitable for most gasoline engines, including hybrids with gasoline powertrains. It’s not designed for diesel engines or for vehicles with physically compromised catalytic converters. Always verify compatibility in your owner’s manual and follow safety precautions on the label.

• Compatible with gasoline and hybrid vehicles (gasoline engine variants).
• Not appropriate for diesel engines or physically damaged converters.
• Store upright in a cool, dry place and keep out of reach of children and pets.

Who is this for: MotorPower Care Catalytic Converter Cleaner 2-Pack is intended for car owners and DIYers who want a cost-effective way to address emissions-related performance issues, improve oxygen sensor readings, and reduce carbon buildup without immediate mechanical intervention. It’s best for vehicles showing mild-to-moderate emissions symptoms, recent P0420/P0430 codes linked to contamination, or owners preparing for an emissions/smog test. If your converter is cracked, physically damaged, or showing severe internal failure, consult a certified technician—this cleaner is not a mechanical repair.

• Features: Restores engine performance, compatible with gasoline & hybrid vehicles, not a repair for physically damaged catalytic converters.
• Package: Two 8.45 fl oz bottles per kit; single-bottle dose per full tank.
• Notes: Use as part of regular maintenance to reduce deposits and stabilize sensor readings.