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 ...

An engine misfire is when one or more cylinders doesn’t produce power, and there are several possible causes, from a fouled spark plug to a clogged fuel injector or faulty oxygen sensor.

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.

Spark plugs, which screw into the top of an engine’s cylinders, create the electric spark required to ignite the compressed air-fuel mixture in gas-powered engines. The right type of plug and ...

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise.

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 ...