What are the best ways to clean o r unclog a Prius catalytic converter?

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What are the best ways to clean o r unclog a Prius catalytic converter?

Some Prius owners try fuel additives, catalytic converter cleaners, o r high-speed driving to clear minor blockages. Are these methods effective, o r is replacement the only long-term solution?

Qalb E Momin asked on 14 Feb 2025 16:16:13 pm

1 Answer

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Car Mechanic Expert - on 14 Feb 2025 16:20:07 pm

While there are some methods to attempt to clean o r unclog a catalytic converter, these should be used with caution:

Fuel additives: Some cleaners claim to clear minor blockages by dissolving deposits. However, these are generally not a long-term solution.
High-speed driving: Occasionally driving at high speeds can sometimes help clear minor blockages by increasing the temperature of the catalytic converter.

Effective solution: If the converter is significantly clogged, replacement is the most reliable and long-term solution.