Engines are evolving and spark plugs are changing to counteract the additional stress inside the combustion chamber.
Many OEMs are revising the spark plug replacement interval downwards. In the past, a spark plug might go 100,000 miles. On today’s direct-injected engine with a turbocharger, the interval might be just 35,000 miles. Watch the quiz and play the game, you might be surprised.
This video is sponsored by Autolite.