How Long Does a Three-Way Catalytic Converter Last?

[JudeAnn]

The service life of a three-way catalytic converter under domestic standards is approximately 80,000 to 100,000 kilometers, while in foreign countries, it typically ranges from 160,000 to 200,000 kilometers. The actual lifespan of a three-way catalytic converter depends on usage conditions, which vary by vehicle model. Methods to Extend the Life of a Three-Way Catalytic Converter: Vehicles equipped with a three-way catalytic converter should not use leaded gasoline. Lead particles emitted in the exhaust can coat the surface of the catalyst, reducing its active area and significantly diminishing the converter's efficiency. Prevent unburned fuel mixture from entering the catalytic converter. The three-way catalytic converter begins to function at around 200 degrees Celsius. However, when temperatures exceed 1,000 degrees Celsius, the precious metal catalysts can undergo chemical changes, reducing their effectiveness and weakening catalytic performance. Maintenance of the three-way catalytic converter should generally be performed at authorized 4S shops or reputable repair facilities, and the maintenance intervals should not be too long.