The engine in your car, truck, or SUV can run on either copper, platinum, or iridium spark plugs. You probably heard the hype around iridium plugs and how they manage to deliver solid sparks while ...

The many spark plug types are typically named after precious metals used in their center electrode, ground electrode, or both. Copper plugs are the most affordable and the most basic while iridium ...

In the past decade or so, automakers have turned to downsized turbocharged engines—often with direct injection and higher ...

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