Regardless of the type of spark plug used by your car, chances are high that without proper engine maintenance, you could experience spark plug fouling. Fouled spark plugs cause misfires, rough idle, ...

1 Spark plugs with light tan or gray color deposits usually indicate a sound engine and ignition system. Plugs within this color range can have normal electrode wear of about. 005-to. 008-inch, which ...

Spark plugs may be small, but they’re vital to your car’s performance, fuel economy, and reliability. Misfires, rough idling, and poor acceleration often trace back to worn or fouled plugs. Knowing ...

The InfluEnzo is back! In this episode, I address the issue with my Ferrari 308, which is burning excessive oil and fouling ...