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NGK Iridium plugs...

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Alquimista, Sep 15, 2015.

  1. Sep 17, 2015 at 1:32 PM
    #21
    Chuy

    Chuy Well-Known Member

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    I didn't notice any hp gains or mpg gains with Iridiums. I did notice quicker responsive times. Could be my OEM plugs at 50k were overdue. But, that quick responsive time remains noticeable after 80K miles. Main reason I got them is for the 100K longevity. Less cost in the long run too: OEM plugs on Amazon are $5.56 ea; NGK Iridiums $7.77; Denso Iridiums $7.73.
     
    Revelations likes this.
  2. Sep 17, 2015 at 8:21 PM
    #22
    Taco Pete626

    Taco Pete626 Well-Known Member

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    I think for the majority, iridiums are a no brainer unless

    a) you plan on selling the vehicle soon

    b) you don't drive the vehicle that much

    c) you can't afford iridiums. Using the numbers stated from above, regular plugs for a 6 cyl = $33.36; iridiums = 46.42. $13 or so difference...
     
  3. Sep 17, 2015 at 8:48 PM
    #23
    jeepsrwack

    jeepsrwack Well-Known Member

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    I plan on changing mine at 50k also to iridiums then every 100k after that.
     
  4. Sep 17, 2015 at 9:35 PM
    #24
    TacoDan723

    TacoDan723 Well-Known Member

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    Seriously? Every 30K? Every car I have purchased in the last 15 years say they are good for 100K. I actually changed the plugs in my Honda van at 105K and they still looked good.
     
  5. Sep 18, 2015 at 1:51 AM
    #25
    Chuy

    Chuy Well-Known Member

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    Silver Taco
    Yep, recommended plug replacement is 30K for Tacoma V6, but with standard copper plugs. 100K are for those cars equipped with Iridiums. My 07 Taco has 30K recommendation; my wife's 07 Lexus ES350 has 120K recommendation but her car came with Denso Iridiums. Both vehicles are now equipped with NGK Iridiums and they will be changed at 100K.
     
  6. Sep 18, 2015 at 7:08 AM
    #26
    nd4spdbh

    nd4spdbh Well-Known Member

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    Yup every 30k for the standard copper core plugs. I changed mine just recently at 26 and you could tell they were slightly worn. That stated i changed my moms 4 runner 4.0L (same motor as ours the single vvti) that had stock plugs at 107k miles.... it ran fine but plug gaps were 2x the spec haha.
     
  7. Sep 19, 2015 at 7:53 PM
    #27
    KenLyns

    KenLyns 8.75" Third Member

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    Your previous cars probably happened to have iridium plugs from the factory. My 2011 Subaru Impreza non-turbo requires spark plug change at 30K. Not all that easy to do with the boxer engine layout, either. :mad:
     
  8. Sep 19, 2015 at 8:10 PM
    #28
    TacoDan723

    TacoDan723 Well-Known Member

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    I hear you there. I had a Subaru ONCE. Sold it and never looked back.. :)
     
  9. Sep 20, 2015 at 5:44 AM
    #29
    KenLyns

    KenLyns 8.75" Third Member

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    ^Your loss. :p The Subaru accelerates and handles way better than any equivalent Toyota model, and has been just as problem-free as my Taco.
     
  10. Oct 22, 2016 at 6:57 AM
    #30
    Alquimista

    Alquimista [OP] Well-Known Member

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    Tested Autolite iridium.

    Transmission changes are faster, feels more speed, yet the torque or force is better with copper plugs.
    And... No precise measure, but there is more gas consumption with iridium.

    So, experience is not good
     
  11. Oct 22, 2016 at 7:09 AM
    #31
    Mush Mouse

    Mush Mouse Club Soda Not Seals

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    where ever you want me to be
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    its a Toyota truck and that's all the modifications needed
    that's funny I just changed out my 2006 Honda Accords I4 factory iridiums at 101k and they were shot to hell:oops:
     

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