DURA LUBE Severe Catalytic & Exhaust Treatment Fuel Additive — 16 fl oz, 2-Pack | Restores Exhaust Flow & Cleans Injectors

This concentrated gasoline additive is formulated to dissolve carbon, phosphorus, and zinc deposits that accumulate in the exhaust path and fuel system. By treating the entire fuel line from tank to tailpipe, it aims to recover lost performance and improve combustion stability without removing parts. The product is supplied as a convenient pour-in treatment, sold here as a two-pack for repeated maintenance or multi-vehicle use.

How does this cleaner affect catalytic converter performance?

The formula targets carbon and contaminant buildup that can clog catalyst substrates and restrict exhaust flow. Clearing those deposits can help the converter operate closer to its designed efficiency and reduce backpressure on the engine.

• Breaks down carbon and deposit layers on catalyst surfaces.
• Reduces particulate and chemical fouling of oxygen sensors.
• Improves exhaust flow to support smoother engine operation.

Will it help if my check engine light is on?

This additive can address emissions-related issues caused by clogged converters or contaminated sensors, which are sometimes responsible for fault codes. It does not override or bypass on-board diagnostics and cannot deactivate MIL warnings that stem from unrelated faults.

• May clear emissions faults tied to exhaust contamination.
• Safe to use with OBD systems; won’t mask unrelated sensor failures.
• Can be a cost-effective step before expensive repairs.

How do I use it and what engines are compatible?

Usage is straightforward: add the 16 fl oz bottle to a near-empty gasoline tank, then fill the tank and drive normally to let the cleaner circulate. The treatment is formulated for all gasoline engines in cars, trucks, and SUVs and is not intended for diesels.

• Pour one bottle into the fuel tank, then refill the tank immediately.
• Designed for all gasoline-powered passenger vehicles and light trucks.
• Sold as a two-pack so you can treat multiple tanks or vehicles.

What performance changes can I expect after using it?

Improvements vary by vehicle and contamination level, but common outcomes include steadier idling, reduced hesitation, and improved throttle response as deposits are removed. Fuel economy gains depend on how severely the system was fouled and driving conditions.

• May restore smoother acceleration and throttle response.
• Can promote more complete combustion and steadier idle.
• Potential for modest fuel-efficiency improvement in affected vehicles.

Who is this for: Dura Lube Severe Catalytic and Exhaust Treatment is aimed at vehicle owners and technicians looking for a non-invasive way to address emissions-related performance problems and reduce the risk of premature catalytic converter replacement. It’s suited for preventative maintenance or as a first step when an engine shows reduced power, rough idle, or emissions faults. Note: this product is not a tuner or delete kit and will not bypass or defeat emission controls or turn off diagnostic trouble lights unrelated to exhaust contamination.

Features at a glance:

• Powerful catalytic converter and fuel system cleaner to help restore engine power and smooth acceleration.
• Targets carbon, phosphorus, and zinc contamination in catalytic converters and oxygen sensors.
• Acts as a fuel injector cleaner to support improved combustion and throttle response.
• 16 fl oz pour-in bottle; compatible with all gasoline engines in cars, trucks, and SUVs.