Manufacturer NGK makes its own specialized Laser Iridium spark plugs. Here's what exactly makes them different from regular ...

I'm going to do some service on my Toyota Echo on Sunday, including new plugs. The current plugs are Denso iridium and have just over 30,000 miles on them. I was wondering if any of you have any basis ...

You replace your spark plugs fairly often, so it's important to know which ones are superior. Many car owners take the mighty spark plug for granted. It’s a simple yet crucial device that’s ...

SEOUL (Reuters) -- South Korea's antitrust regulator will fine five auto parts firms, including Japan's Denso Corp., NGK Spark Plug and their local units, a total of 3.5 billion won ($3.2 million) for ...