Cataclean Fuel & Exhaust System Cleaner for Gasoline Engines — 16 oz, 6-Pack | Restores Power & Lowers Emissions

Cataclean Fuel & Exhaust System Cleaner is a one-step liquid treatment you pour into the gas tank to dissolve carbon deposits in the fuel and exhaust systems, helping restore power, improve fuel economy, and reduce emissions.

Engine carbon build-up on injectors, intake valves and catalytic converters accumulates over time and reduces efficiency. This 16‑oz bottle formulation is designed for gasoline engines and is sold here in a 6‑pack so you can treat multiple fill-ups or several vehicles. No special tools are needed — add it to the fuel tank following the instructions and run the engine to let the formula circulate and clean critical components.

How does Cataclean reduce emissions and help pass smog tests?

Cataclean’s chemistry targets carbon deposits that interfere with oxygen sensors, catalytic converters, and exhaust flow. By removing these deposits, the cleaner helps lower hydrocarbon output and improves catalyst function, which can bring emissions readings back toward factory ranges.

• Formulated to reduce hydrocarbon emissions on gasoline engines by up to 50%.
• Helps restore catalytic converter efficiency by removing carbon blocking catalyst surfaces.
• Useful before scheduled smog checks to reduce the likelihood of failure due to deposit-related issues.

Will Cataclean improve my fuel economy and performance?

Yes — cleaning injectors, intake passages, and combustion chambers improves spray patterns and combustion efficiency. That can translate to smoother idling, recovered horsepower, and modest fuel economy gains, especially in engines showing deposit-related symptoms.

• Restores injector and valve cleanliness for better atomization and more complete combustion.
• Can recover lost power by removing buildup that disrupts airflow and fuel delivery.
• Regular treatments help maintain peak operating efficiency over time.

Can Cataclean clear check engine lights and which trouble codes might improve?

Cleaning the fuel and exhaust systems can resolve common codes caused by inefficient combustion or catalyst performance. While no cleaner guarantees a light will go off, Cataclean is often effective for codes tied to oxygen sensor or catalytic converter performance.

• Targets symptoms behind codes such as P0420, P0430, P0171, P0174, P0300, and P0401.
• Best used after basic repairs; persistent electrical or mechanical faults may still need professional diagnostics.
• Helps avoid unnecessary component replacements by addressing deposit-related causes first.

How easy is it to use Cataclean and which engines is it compatible with?

Application is straightforward: pour the contents into a near-empty fuel tank and refill with gasoline to mix, then drive as normal so the cleaner circulates through the system. It’s formulated for gasoline engines and indicated safe for use in hybrid vehicles; labeling notes 50‑state legal use.

• Single 16‑oz dose per treatment; this listing includes six bottles for repeat use or multiple vehicles.
• No tools or disassembly required — add to fuel tank and operate the vehicle.
• Compatible with cars, light trucks, and many hybrids that accept gasoline treatments.

Who is this for: Cataclean is aimed at drivers and fleet managers who want a simple preventive product to keep fuel systems and catalytic converters running cleaner, reduce emissions, and potentially delay costly repairs. It’s especially useful for vehicles showing rough idle, reduced fuel economy, or mild exhaust-related check engine lights, and for anyone preparing a vehicle for an emissions inspection. Always follow product directions and consult a technician for persistent engine problems.