Consider for a moment what happens when a spark plug fires. The spark is created when high voltage supplied by the ignition coil jumps across a small air gap between the plug electrodes. The high voltage surge from the coil goes down the plug center electrode, ionizes the air between the ...
Every time a spark plug fires, the hot spark blasts a few molecules of metal off the electrodes. As the miles add up, the electrode gap widens and the center electrode becomes rounded and dull. This increases the firing voltage needed to jump the gap. Eventually the point is reached where...
ENSURE RELIABILITY: The necked-down center electrode in the Autolite Platinum Spark Plug fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel efficiency when compared to Standard plugs....