Car owners sometimes find, to their dismay, that their catalytic converters have been stolen because of the platinum inside.

Older vehicles usually have two-way catalytic converters, meaning they can change carbon monoxide into carbon dioxide and hydrocarbons into water. However, cars built after 1981 typically have ...

There are two main types of structures used in ... down to levels that will not harm it. Preheating the catalytic converter is a good way to reduce emissions. The easiest way to preheat the ...