SparkPlugs.com is holding a spark plug contest! You will find a spark plug quiz below, all of the answers can be found on our website. Please e-mail your answers to Natasha@SparkPlugs.com. The contest is open until December 22nd. Any member with 25 posts or more can participate. Whoever gives the most accurate answers, or gets the most correct, will receive one set of NGK iridium spark plugs on the house. The winner will then need to do an installation and product performance review within 2 weeks after they receive the plugs. The review should show their installation process and a review of their impression of the product and its performance. Let me know if you have any questions!

Spark Plug Quiz:

1. What are the 9 product brands carried by SparkPlugs.com?

2. How many of those are spark plug manufacturers?

3. What are the three precious metals premium spark plugs are made out of?

4. Are standard spark plugs made with copper or nickel?

5. What does RFI stand for, and how do you prevent it?

6. Can Platinum plugs be used with nitrous?

7. Can Iridium plugs be used with nitrous?

8. What are 5 types of modifications that may make it necessary to change your spark plug heat range?

9. What is the heat range vs. hp increase rule of thumb?

10. Is it better to have too hot or too cold a plug? Why?

11. Do ā€œfine wire plugsā€ refer to the ground electrode or center electrode?

12. What are two benefits of fine wire plugs?

13. What are the two precious metals used on fine wire plugs?

14. How is iridium superior to platinum?

15. Why is iridium used on fine wire plugs?

16. Which plug manufacturer makes the thinnest fine wire iridium center electrode?

17. Should Iridium plugs be gapped?

18. How long do iridium plugs last?

19. Why should I always check the gap before I install new plugs?

20. How can I find the proper gap for my motor?

21. What is the maximum I can open or close the gap?

22. How do I properly gap a plug?