While small in size, spark plugs play a pivotal role in how your vehicle performs. However, there are several different kinds ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." Swapping out spark plugs is, next to changing your oil, one of the most basic, straightforward bits ...

There's something oddly satisfying about pulling an old spark plug out of an engine, but what do you do with the plug once it's out? Maybe you're having second thoughts about changing the spark plug ...