Spark plug indexing won't make much of a difference in your average stock car, but it can have a noticeable impact in ...

Spark plugs are essential for cars with internal combustion engines. However, they can seize up and get stuck. Here's how to ...

The Ford 5.4L Triton three-valve engine is a great powerplant and comes from the factory with Motorcraft platinum tipped spark plugs rated to last 100K miles. However, if you’ve blindly attempted to ...

Misfiring, rough idling, poor acceleration, and decreased fuel efficiency — the four ominous horsemen of bad spark plugs. Nobody wants to ever get to that point before desperately changing such a ...