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Intro
Why would you fit Iridium spark plugs?
You don't need to worry about the gap like Platinum spark plugs
Gap problems with Platinum spark plugs
Why I recommend Iridium
What is the difference between Denso Iridium Power & NGK Iridium IX
Service life NGK vs Denso
Take care when gapping the plugs
Heat ranges
Which is best for you?
Summary