How Often Should the Catalytic Converter Be Replaced?

1 Answers
AaronRose
07/29/25 11:15pm
The catalytic converter should be replaced every 10,000 to 20,000 kilometers. Maintenance tips for the catalytic converter: 1. Fuel quality selection: Avoid using low-quality gasoline. When fuel quality is poor, sulfur, phosphorus, lead in the fuel, and manganese in the anti-knock agent can form chemical complexes inside the catalytic converter after combustion, leading to clogging over time. 2. Cleaning: Typically, the catalytic converter should be cleaned every 30,000 kilometers. If you notice increased fuel consumption or reduced power, inspect and clean the catalytic converter as needed. Clean the catalytic converter each time the fuel injectors, throttle body, and intake system are serviced. Before annual vehicle inspections, clean the catalytic converter to ensure smooth passage of the emissions test.
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