A lot of us here do our own tune-ups, just like a lot of you do. It's a great way to save a few bucks, and frankly, we think something like changing spark plugs is one of those car maintenance skills ...

In the past decade or so, automakers have turned to downsized turbocharged engines—often with direct injection and higher compression ratios—to boost efficiency. These fancier power plants tend to ...

All spark plugs may look the same to the untrained eye. Unfortunately, nothing could be further from the truth. For starters, spark plugs come in many types that are mainly differentiated by the ...