Project Farm tests E3, Pulstar, Autolite Racing, NGK Iridium, and NGK Copper spark plugs for fuel efficiency, performance, and each was visually observed for burn characteristics…
What is the Best Spark Plug Design?
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Automotive Basics
How To Read and Understand Spark Plugs
By closely examining the spark plug insulator firing tip color, you can determine a lot about an engine’s overall operating condition. [More…]
Technical Info
The Spark Plug Story
The first use of a spark plug in an internal combustion engine was attributed to the Belgian Engineer Jean Joseph Étienne Lenoir in 1859. [More…]
How To & DIY
How To Rule Out A Spark Plug As Your Problem
A very simple but effective method to confirm if a spark plug is/is not the cause of engine starting and/or performance problems. [More…]