China best spark plugs for performance manufacturers and shorty spark plugs factory

A spark plug wear chart tells you exactly one thing that matters most to an engine's health: how much of the electrode has eroded away and whether the gap has widened past the point where combustion ...

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...