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Iridium plug for V6

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Imageoguy, Apr 7, 2025.

  1. Apr 7, 2025 at 10:17 AM
    #1
    Imageoguy

    #1
    Imageoguy [OP] Well-Known Member

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    Full OME suspension (885 front springs, Dakar leaf pack + OME shocks) + D29XL extra leaf + 3 deg. shim + RideRite airbags
    Imageoguy, Apr 7, 2025
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    lowmower likes this.
  2. Apr 8, 2025 at 10:51 PM
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    tacokarl

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    tacokarl Big Blue

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    I've tried a few different plugs including OEM NGK replacements but my truck seems happiest with NGK Iridium IX Part #
    $44 LFR6AIX-11 - 6 PCSNEW
    LFR6AIX-11. I Change them every 80k.
     
    tacokarl, Apr 8, 2025
    #2
  3. Apr 9, 2025 at 8:13 PM
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    Pigpen

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    Pigpen My truck is never clean

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    I went iridium at my first plug change. Truck seems happy and I don't have to do them as often, which reminds me.... when did I do them last? Driving to Moab on Sunday. Maybe I should do them before then. Shit.
     
    Pigpen, Apr 9, 2025
    #3
  4. Apr 10, 2025 at 8:53 AM
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    danteisme

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    danteisme Well-Known Member

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    Just jumping in this thread because i'm thinking of going to irridum from the standard copper. Iridium's come pre-gapped, dont they?
     
    danteisme, Apr 10, 2025
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  5. Apr 10, 2025 at 9:04 AM
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    BTO

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    BTO Well-Known Member

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    Bilstein 5100s front, Adjustable Ranchos rear.
    Always check the gap and adjust as needed. Go by the vehicle manufacturer's gap spec for that specific vehicle, not the plug manufacturer.

    I've been running NGK Iridium IX plugs in my 4.0 for the last 9 years. The engine is dam near perfect. Smooth and responsive. But if I was buying plugs for it today, I'd go with Rutheniums. Those are even better IMO.
     
    BTO, Apr 10, 2025
    #5
    danteisme likes this.
  6. Apr 10, 2025 at 9:28 AM
    #6
    danteisme

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    danteisme Well-Known Member

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    I remember from my days (like 18 years ago now) working at an autoparts store, they always told me not to gap the irridium plugs because it will damage the tip. Not sure if the information they got was true, but its something i've always kept in mind.
     
    danteisme, Apr 10, 2025
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    lowmower likes this.
  7. Apr 10, 2025 at 9:59 AM
    #7
    BTO

    #7
    BTO Well-Known Member

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    '07 Silver PR DC AT SR5 TP LSD
    Bilstein 5100s front, Adjustable Ranchos rear.
    You can gap iridiums and rutheniums. You only need to avoid prying on the tiny electrodes. I recently installed new NGK Ruthenium plugs (similar to Iridium) in my old BMW. The plugs came gapped at .044 but BMW gap spec for that engine is .032. I was able to set the gap at the proper .032 and the new Rutheniums work flawlessly.
     
    BTO, Apr 10, 2025
    #7
    danteisme likes this.
  8. Apr 10, 2025 at 10:26 AM
    #8
    danteisme

    #8
    danteisme Well-Known Member

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    06 DCSB Sport, 96 Integra GSR
    thank you, thats good to know information!
     
    danteisme, Apr 10, 2025
    #8

Products Discussed in

NGK 6619 Iridium Spark Plugs LFR6AIX-11 - 6 PCSNEW
$43.74
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