These symbols, often called "idiot lights," are aimed at being easy to understand. But for many drivers, young and old alike, it's not that easy.

Side gapping your car's spark plugs could result in some modest performance gains. Here's what it means, how to do it, and ...

Diesel engines can technically run backwards, though there's very little (if any) practical applications for this, especially ...

Diesel engines need extra care in winter to avoid problems like fuel gelling, weak batteries, and thick oil. Key tips include ...