After How Many Miles Should U Change Your Spark Plugs Iridium Plugs Last 100k Miles

I often get different answers as to how many miles your spark plugs are good for. I keep hearing that the iridium plugs last 100k miles but this seems a lil hard to believe, how true is that claim?

Answers for The Question

  1. David L
  2. Busitnjustin41
  3. Will
  4. bill