Iridium IX Spark Plugs

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Old Apr 25, 2006 | 10:43 AM
  #1  
acutee's Avatar
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Iridium IX Spark Plugs

Hi,
Anyone knows how long the Iridium IX spark plugs would last? What is it MTBF?

THanks
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Old Apr 25, 2006 | 11:35 AM
  #2  
Pro
 
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From: Castro Valley, CA
MTBF = Mean Time Before Failure
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Old Apr 25, 2006 | 11:44 AM
  #3  
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Thanks for clarifying Chet. What I found is that they all said it would last longer, but there is no specification indicating how many miles it would last averagely.
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Old Apr 25, 2006 | 03:41 PM
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don't bother spending the extra cash, not worth it, i had then in my last stang that was all modded, no big difference IMO
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Old Apr 26, 2006 | 09:28 AM
  #5  
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I am debating on my next plugs change whether I should go with Iridium IX or stick with the OEM plugs.
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Old Apr 26, 2006 | 09:48 AM
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The OEM plugs are double platinums and hella expensive. Denso or NGK iridiums are good alternatives. Check www.sparkplugs.com for good prices.
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Old Apr 26, 2006 | 12:51 PM
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NGK's will last longer because of the 0.6 electrode as compared to the 0.4 on the Denso's.
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Old Apr 26, 2006 | 02:05 PM
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Originally Posted by optomos
NGK's will last longer because of the 0.6 electrode as compared to the 0.4 on the Denso's.
will they last just as long as the OEM plugs?
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Old Apr 26, 2006 | 02:15 PM
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The OEM iridiums will, but the performance will be around 60,000 and Denso say's 30,000.
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Old Apr 26, 2006 | 02:23 PM
  #10  
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Thank you all for the info. If they will last for 60k, then it is an excellent oem replacement for the price.
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Old May 2, 2006 | 09:19 AM
  #11  
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From: JeRzY
hey guyz a question......i replaced my spark plugs with denso....and after driveing like 20-30 miles my SRS light came on...can you please help here thanks..
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Old May 2, 2006 | 11:19 PM
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Take it to autozone and have the code read out. I don't think it has anything to do with the spark plugs you replaced.
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