







Spark Plug Condition: The Direct Answer First A healthy spark plug condition shows a light tan or grayish-brown deposit on the insulator tip, a clean electrode with no excessive erosion, and a gap th...
Indexing spark plugs means rotating the plug in the cylinder head so that the open side of the ground electrode faces the incoming air-fuel mixture or the center of the combustion chamber, rather tha...
Do You Need Anti-Seize on Spark Plugs? The Short Answer Most modern spark plugs do not need anti-seize compound, because the majority of plugs sold today already carry a factory-applied trivalent z...
Spark Plug Temp Range Explained: The Short Answer First A spark plug temp range, more commonly called the heat range, describes how quickly a spark plug can pull combustion heat away from its firing...