Spark plugs are integral components for gas-powered internal combustion engines. These diminutive devices create the electric spark that ignites the fuel and air mixture inside your motor.

The most damaging flaw in these plugs is the low-quality center electrode. NGK electrodes are iridium. The dupes, though, are so crappy that they actually melt during an engine’s normal ...

which might experience engine misfire, excessive oil burning and premature spark plug fouling issues. As part of the settlement, Honda will extend the powertrain warranty on these models for eight ...

NAGOYA--In a spark of inspiration, auto engine parts maker NGK Spark Plug Co. here decided to change its name to something more compatible with the global push for environmentally friendly cars.