Learning Center

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  What is the Proper Gap Setting for My Vehicle?

  After completing an application search and selecting a spark plug, the “vehicle info” tab on the product detail page...

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  Should I Gap My E3 Plugs?

  The answer depends on the E3 design...

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  Proper E3 Gapping Instructions

  Proper gapping instructions...

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  Can Old Spark Plugs be Cleaned?

  Yes, you can clean spark plugs, however, in most cases it's not worth it...

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  Diagnosing a Cylinder Misfire

  Have you ever had your car suddenly start to sputter on acceleration?

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  E3 Plug Torque Settings

  It is essential to tighten a spark plug to the specified turning angle or torque setting...

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