Dura Lube Severe Catalytic and Exhaust Treatment Cleaner Fuel Additive, 16 fl. oz., (PN: HL-402409 PDQ3)

PERFORMANCE. Add to your vehicle anytime to help fuel systems and engine performance., RECOMMENDATION. Use before replacing catalytic converter., SHIELD. Protects catalytic system from harmful oil and maintains catalytic efficiency., REDUCTION. Reduces phosphorus and zinc retention levels at catalyst inlet., SAVING. Help increase fuel economy, fit type: universal fit work on all engines.