Dura Lube Severe Catalytic & Exhaust Treatment is formulated to protect and treat the Catalytic Converter & Exhaust System from oil poisons. This will aid in reducing the carbon footprint of your vehicle and improving overall performance; helping to increase fuel efficiency, and protect your converter.

• Use before replacing your catalytic converter

• Helps pass emissions control test by cleaning the system

• Use when the warning light is activated (OBD II Error Code P0420)

• Protects the catalytic system from oil poisons

• Reduces phosphorus & zinc retention levels at catalyst inlet

• Lowers tailpipe emissions

How does a catalytic converter work?

ONLY NEED TO USE 4 X PER YEAR: Spring / Summer / Fall / Winter 

Directions: Add full bottle into 16 gals (60 liters) of fuel or 1 oz. per gal. (30 mL per 3.8 L).

Recommend Usage: Use once every 3 months for optimal performance. Results vary on driving amounts and engine conditions.

UPC: 715981402407

Proposition 65 Warning for California Consumers