Oxygen Sensor & Catalytic Converter Cleaner - Preventive Maintenance

In this review the AUTOPROFI OXICAT oxygen sensor and catalytic converter cleaner is examined as a preventive maintenance product for gasoline and diesel vehicles. The bottom line: it is best for owners who run regular maintenance cycles and can drive their vehicle long enough for the catalytic converter to reach operating temperature, because OXICAT is activated by heat and works throughout the exhaust system to dissolve soot and carbon. The reviewer found it to be a practical proactive care product rather than an instant fix for blocked components or persistent check engine light faults.

Key Features

• Preventive maintenance focus: Designed for regular use to reduce noxious residue buildup that can lead to emissions failures and poorer performance.
• Works at operating temperature: The formula is activated when the catalytic converter reaches its required working temperature, so long highway runs improve effectiveness.
• Full exhaust cleaning: Engineered to dissolve soot and carbon deposits throughout the exhaust system, not just at a single component.
• Universal fuel compatibility: Safe and effective for both gasoline and diesel vehicles when used as directed.
• Proven and certified: Manufactured by CTP/bluechem GROUP, TUV certified and made in Germany, lending professional credibility.
• Pack of two: Supplied as a two-pack for repeated treatments as part of a maintenance routine.

Who It's For

OXICAT is aimed at car owners and fleet managers who perform regular preventive maintenance and can provide driving conditions that let the catalytic converter reach sustained working temperature. It suits vehicles that pass through regular highway use and are subject to emissions testing where keeping the exhaust system clean matters.

It is not a cure-all for mechanical failures; drivers with persistent check engine lights, severely clogged converters, or sensors that require replacement should look to diagnostic repair rather than rely on a cleaner alone. Those who need immediate, guaranteed code clearance should consult a technician.

Pros & Cons

Pros

• Engineered to clean the entire exhaust system, helping prevent buildup that can cause emissions test failures.
• Safe for gasoline and diesel engines, which makes it versatile for mixed fleets or changing vehicles.
• TUV certified and produced by an established manufacturer, offering professional-level formulation and quality.

Cons

• Requires the catalytic converter to reach and sustain working temperature, so short trips limit effectiveness.
• Some users report mixed real-world results on clearing codes or immediate functionality, so outcomes can vary by vehicle condition.

Specifications

Product name	OXICAT oxygen sensor & catalytic converter cleaner
Pack size	Pack of 2
Fuel compatibility	Gasoline and diesel
Activation	Activated at catalytic converter working temperature
Manufacturer	CTP/bluechem GROUP (AUTOPROFI)
Certification	TUV certified, made in Germany

Our Verdict

OXICAT is a sensible preventive maintenance product for drivers who can run their vehicle long enough for the catalytic converter to reach operating temperature and who want to minimize soot and carbon buildup. It represents good value for owners seeking routine exhaust care backed by a reputable manufacturer, but it should not be treated as a guaranteed repair for sensor faults or heavily clogged converters.

Frequently Asked Questions

Will OXICAT clear a check engine light?
It may clear codes related to minor residue or incomplete combustion, but persistent codes usually indicate a failing part or sensor and require diagnosis and repair.

How often should I use it?
Use as part of a proactive maintenance routine; the pack of two allows repeated treatments, but effectiveness depends on driving long enough for the catalytic converter to reach working temperature.

Is it safe for my diesel car?
Yes, the formulation is described as safe and effective for both gasoline and diesel vehicles when used as directed.