FYI - Denso spark plug failure in FI S2000
Joined: May 2001
Posts: 6,206
Likes: 15
From: Bergen County, NJ
summation so far,
2 routes you could decide. copper or platinum/Iridium.
copper: NGK 7173 for 1 step colder, 7405 for 2 step colder. you will need to change often.
platinum/Iridium: IK24 for 1 step colder, IK27 for 2 step colder. there were part number for NGK as well but I don't remember as I DO NOT favor the idea. longetivity has not been confirmed. expensive. few people reported problem including myself.
you'll have to make your own choice. I made my choice to go with 7173 and change it every other oil change. btw, RED still runs great and no 8000 rpm hiccup.
I think fuel consumption has improved as well. I'll report more about it later dates.
2 routes you could decide. copper or platinum/Iridium.
copper: NGK 7173 for 1 step colder, 7405 for 2 step colder. you will need to change often.
platinum/Iridium: IK24 for 1 step colder, IK27 for 2 step colder. there were part number for NGK as well but I don't remember as I DO NOT favor the idea. longetivity has not been confirmed. expensive. few people reported problem including myself.
you'll have to make your own choice. I made my choice to go with 7173 and change it every other oil change. btw, RED still runs great and no 8000 rpm hiccup.
I think fuel consumption has improved as well. I'll report more about it later dates.
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Paperboy7777
S2000 Under The Hood
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Jan 9, 2012 09:23 AM