Are Iridium spark plugs better than platinum?

Related questions

1. What happens if spark plug gap is wrong?
2. Can a loose spark plug cause damage?
3. How tight should a spark plug be?
4. What is the advantage of using iridium spark plug?
5. Can Oil ruin spark plugs?
6. What happens when spark plugs are bad?
7. How often should you change spark plugs?
8. Is Anti Seize needed on spark plugs?
9. What spark plugs should I use?
10. How long will a spark plug last?

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