Dura Lube Severe Catalytic & Exhaust Treatment (16 oz., 6-pack)
Fuel system additive that helps engine performance and protects the catalytic system. Customers report improved gas mileage and some variability in check engine light behavior
Highlights
- protects catalytic system
- reduces phosphorus and zinc at inlet
- potential fuel-economy improvement
Pros
- protects catalytic system
- may improve fuel economy
- universal fit for all engines
- supports fuel system performance
- positive quality perception from customers
Cons
- mixed results on engine light behavior
- mixed feedback on cleaning power
- some reports of limited longevity
Best For
Features
- Adds to fuel system to support engine performance and reliability
- Recommended use prior to catalytic converter replacement
- Protects catalytic system from oil-related harm while maintaining efficiency
- Reduces phosphorus and zinc retention levels at the catalyst inlet
- Promotes potential improvements in fuel economy
