Why Do Spark Plugs Wear Out?

Engine behavior changes as spark plugs wear, with symptoms like misfires and rough idling. But what causes them to wear down ...

These are the 3 smart rings readers bought most this year (and the top pick is on sale)

The Oura Ring 4 is a top seller among readers for several reasons. Though it's one of the most expensive smart rings with a pesky $70 annual subscription, it excels at its core functions and is ...