Catalytic converters (cats) have been a legal requirement on passenger vehicles with internal combustion engines since the U.S. government passed the Clean Air Act of 1970. That means that if you ...

If your family’s car runs on gasoline, it has a device called a catalytic converter. Inside this device is the catalyst, which is a piece of metal — usually platinum, palladium, or rhodium. These ...

The catalytic converter is located upstream of the muffler ... they make today’s vehicles dramatically cleaner than older vehicles. Catalytic converters can be both causes and victims of ...