We may receive a commission on purchases made from links. The catalytic converter is a non-serviceable part that can last well beyond 100,000 miles; or, in some cases, the entire life of the vehicle, ...

Thanks to the Clean Air Act of 1970, all cars sold in the US after 1975 must have catalytic converters (cats) installed on them. That means that if you drive a relatively modern car, it should have ...

Intro: A graph of your car’s idle speed shouldn’t resemble architectural plans for a new Cedar Point roller coaster. Once the car warms up to normal operating temperature, it should run in a smooth ...