Severe Catalytic & Exhaust Treatment -16 oz.

$24.99 $19.99

Brand Dura Lube
SKU: HL-402409-06

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

  • Use when the warning light is activated

  • Protects the catalytic system from oil poisons

  • Reduces phosphorus & zinc retention levels at catalyst inlet

  • Lowers tailpipe emissions

How does a catalytic converter work?

How does a catalytic converter works?Exhaust system flow


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

⚠️ WARNING: This product can expose you to chemicals including Naphthalene, which is known to the State of California to cause cancer. For more information go to



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