Fitting bigger spark plugs might sound like a recipe for improving power output, but it can have catastrophic consequences for your engine.

Platinum spark plugs are already a step up from copper. Double platinum plugs might seem like a straightforward upgrade, but it's not as simple as it seems.

Spark plugs are a key component of your gasoline engine, and they have a key role in the ignition process. How long can you expect them to last?