MotorPower Care Catalytic Converter Cleaner — 2-Pack 8.45 fl oz, O2 Sensor & Emissions Support

MotorPower Care Catalytic Converter Cleaner is a concentrated fuel additive duo designed to clean catalytic converter deposits, help reduce emissions-related faults, and improve catalytic performance without disassembling the exhaust system.

This two-bottle pack contains two 8.45 fl oz doses of MotorPower Care catalytic converter and fuel system cleaner formulated for gasoline and hybrid vehicles. It targets carbon, soot, and some contaminant buildup that can reduce converter efficiency and trigger trouble codes such as P0420 and P0430. Use as part of routine maintenance or before an emissions test to restore flow and help the exhaust system operate more effectively when the converter itself is intact.

How does this cleaner help me pass an emissions or smog test?

By removing carbon and soot that accumulate in the fuel system and on converter substrates, this additive can improve catalyst oxygen conversion efficiency and lower pollutant readings. It supports proper combustion and helps O2 sensors read closer to expected values, which can reduce tailpipe emissions during testing.

• Breaks down carbon deposits in fuel lines, injectors, and combustion chambers.
• Helps restore oxygen sensor signals for more accurate engine control.
• Formulated to be used directly in the fuel tank for whole-system cleaning.

Can it fix P0420/P0430 check engine lights and related O2 sensor issues?

This cleaner can address P0420 and P0430 when the underlying cause is buildup that hinders catalytic function or skews O2 sensor readings. It cannot repair a physically damaged, melted, or internally broken catalytic converter; use a diagnostic scan to confirm the fault source first.

• Helps normalize O2 sensor readings by improving combustion consistency.
• May clear codes caused by contamination rather than mechanical failure.
• Not a replacement for converter repair if the substrate is damaged.

How do I use MotorPower Care and when will I see results?

Pour one 8.45 fl oz bottle into a near-empty fuel tank before filling with gasoline, then drive normally; for best results follow the dosing instructions on the label. Some users notice improved idle, smoother acceleration, and reduced emissions within one tankful, while heavier deposits may require repeated treatment.

• Use one bottle per treatment in a nearly empty tank, then refill immediately.
• Drive several highway miles to allow the cleaner to circulate and reach the converter.
• Repeat as needed for persistent deposits; check engine diagnostics after treatment.

Is this product compatible with my vehicle and what limitations should I know?

MotorPower Care is safe for use in gasoline and hybrid vehicles with standard three-way catalytic converters and electronic fuel injection systems. It is not intended to repair mechanical damage to the converter or replace professional diagnostics when sensors or exhaust components are failing.

• Compatible with gasoline and hybrid powertrains and most modern fuel systems.
• Not suitable for diesel engines or vehicles with physically damaged converters.
• Always confirm converter integrity before expecting repair-level results.

Who is this for: MotorPower Care Catalytic Converter Cleaner 2-Pack suits vehicle owners and technicians who want a non-invasive, preventive or corrective fuel-additive solution to reduce emissions, address contamination-related check-engine codes, and improve combustion quality. It’s especially useful for drivers preparing for smog tests, fleet managers maintaining emission compliance, and DIYers seeking a simple add-to-tank treatment—provided the catalytic converter is structurally sound.