How Is It That Spark Plugs Are For Certain Brand Cars, NGK For Japanese,

Champion spark plugs for American cars and Bosch for German cars. I’m not sure I understand how a spark plug can make the difference in a cylinder block, based on make, it seems, that data would be the driving force can be made in preference to American or German car. Please inform.

Answers for The Question

  1. BILL B
  2. rollacosta
  3. nitebearer
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