Iridium or platinum spark plugs -- which should you choose for your car? Here's how they compare when it comes to performance ...

We may receive a commission on purchases made from links. Spark plugs have come a long way, as they're more durable and reliable than ever before. In fact, unlike most air filters and fluids that do ...

Copper spark plugs are affordable and widely available, but iridium spark plugs bring their own set of advantages. Here's ...