Gas additives to clean catalytic converter - Castle Products

Gas additives to clean catalytic converter

A catalytic converter has no moving parts

Catalytic converters have been around for a long time. They first introduced converters in the mid-seventies, on American vehicles. The catalytic converter may go unnoticed, until it fails. Replacement of most catalytic converters will be very expensive. Fortunately, most failures are also preventable.

Why does a catalytic converter cost so much?

Still servicable catalytic converter, internal viewA catalytic converter has no moving parts. They consist of a metal shell and a ceramic honeycomb through which exhaust gasses pass. The honeycomb provides support for the catalyst. The catalysts are the heart of the converter. Catalysts in modern catalytic converters contain noble metals. They normally use platinum, palladium and/or rhodium. Because of the scarcity of these metals, they are very expensive. An original equipment catalytic converter requires a high content of these metals.Badly overheated and plugged catalytic converter This is why a quality replacement converter is so expensive.

What does a catalytic converter do?

The catalytic converter changes toxic chemicals in exhaust to less toxic gas. Untreated exhaust gas is largely nitrogen oxides, carbon monoxide and unburned hydrocarbon. The catalyst in the converter helps convert these into much less toxic carbon dioxide, nitrogen and water. It does this by chemical reaction and a great deal of heat.

Typical heated and non-heated oxygen sensorsHeat generated by a catalytic converter, changes the chemical properties of the gas passing through it. This heat can also rise to the point of destroying the converter.

What causes catalytic converters to fail?

Unburned fuel or contaminants entering the converter, can cause the heat to rise out of control. These contaminants enter through the exhaust. Excessive heat can melt the honeycomb support.

Sensors monitor oxygen content before and after the converterAn overheated honeycomb may break and cause a rattle. It can also block the exhaust flow. This results in the exhaust being restricted. Restricted exhausts result in a loss of power, fuel mileage, overheating and usually a check engine light.

Common causes of contaminants entering the exhaust

Coolant, from leaking intake-manifold gaskets, is often drawn into the engine. A leaking head gasket has much the same effect. The chemicals in the engine coolant quickly contaminate the catalyst and cause failure. Promptly addressing any loss of coolant helps prevent this expensive problem.

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SOLDER-IT INC. Catalytic Converter Cleaner and Deodorizer Fuel Additive
Automotive Parts and Accessories (SOLDER-IT INC.)
  • Helps eliminate offensive rotten egg odor
  • May help in passing emissions control test
  • Extends time between tune-ups
  • Helps clean oxygen sensor
  • For use with all catalytic converters monolithic and pelletized types
Lucas Lucas 10020 Fuel Treatment - 5.25 oz.
Automotive Parts and Accessories (Lucas)
  • A great tune-up in a bottle
  • Cleans and lubricates the fuel system
  • Neutralizes low sulfur fuel problems
  • Increases power and miles per gallon by burning excess exhaust emissions
  • Increases the life of pumps and injectors

Popular Q&A

How to clean catalytic converter

No, the oxygen sensors are not in the converter itself, but upstream in the exhaust, and sometimes one on the rear of converter in the exhaust, but not in the converter.
There is no additive that can do anything for the converter. A well-maintained clean running engine kept in good tune is your only insurance against a plugged or failed converter.

What happens to gas in a catalytic converter?

the gases are converted to less harmful gases as nox to no2

How to Clean catalytic converters?

NO WAY!!! otherwise you'd see tons of commercial products for cheapper than the cat, but still expensive enough to cause a problem to average consumers.

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