Is it effective to pour catalytic converter cleaner into the fuel tank?

[McElliana]

Pouring catalytic converter cleaner into the fuel tank is ineffective. Catalytic cleaners only work under high-temperature conditions. At room temperature, the catalytic converter lacks catalytic capability, as its catalyst must be heated to a certain temperature to exhibit oxidation or reduction abilities. Typically, the light-off temperature of a catalytic converter ranges between 250°C to 350°C, with normal operating temperatures between 400°C to 800°C. Below is additional information about catalytic converter cleaners: Cleaning a vehicle's catalytic converter with a dedicated catalytic converter cleaner requires specialized equipment similar to an intravenous drip in hospitals, hence the colloquial term 'drip cleaning' for this process. The cleaning solution is drawn into the engine through the intake vacuum tube via the equipment, passes through the combustion chamber and exhaust pipe to reach the catalytic converter, where it chemically reacts with the deposits on the converter's surface at certain temperatures to achieve the cleaning purpose.