Spark plugs are made from many different materials. Ruthenium spark plugs are able to offer some different benefits from iridium and other plug types.

I'm going to do some service on my Toyota Echo on Sunday, including new plugs. The current plugs are Denso iridium and have just over 30,000 miles on them. I was wondering if any of you have any basis ...

For something that's smaller than your pinky finger, spark plugs have a ridiculously important job: they create a spark that ignites the fuel-air mixture inside your engine's combustion chamber. But ...