Production testing methods for spark plugs have changed very little over the years. This paper forms part of an on-going series of publications from the Author about new spark plug testing techniques.

Discover the top 4 genius ideas and secrets about spark plugs that are not widely known! In this video, we delve into unique ...

The Challenger 392 owner was quoted over $1,500 for a spark plug change on his Hemi V8 engine, but a quick search shows the ...

If you found oil on your spark plugs while doing a replacement, it's something that shouldn't be ignored. Here are the most ...