Modern cars can do a lot of impressive stuff. The onboard diagnostic (OBD) system can tell us when there's a vehicle malfunction by activating the check engine light, while advanced car safety ...

Your car's O2 sensor can cause rough running, bad mileage, and inspection nightmares. Can a quick clean save the day? Here's what you need to know.

Oxygen sensors play an important role in your car's engine, but they aren't like many other components, such as oil filters, for which automakers provide a strict service schedule. Instead, the real ...