For detailed accuracy, we like Summit Racing’s Spark Plug Gapping Tool, and key-style feeler gauges that are thousandths of an inch thick and correlate to various gap sizes. Once the correct ...

In addition to your spark plug socket, you'll also need a ratchet, an extension, a torque wrench, a gap tool, dielectric grease, and some new spark plugs. Those are the basic tools, but depending ...

The hex size, gap, and expected life of the products were also reviewed to find the best plugs for the vehicle. Additionally, the listed heat range for each spark plug was noted and compared ...

Keep in mind this may require more than eight spark plugs to index an entire set of plugs for a V-8 engine. The post Tech 101: The J-Gap Spark Plug Advantage appeared first on The Online ...