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Iridium spark plug discussion

Discussion in '2nd Gen. Tacomas (2005-2015)' started by rnish, Sep 5, 2016.

  1. Sep 5, 2016 at 7:45 AM
    #1
    rnish

    #1
    rnish [OP] Well-Known Member

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    Hello:

    I did a search but cannot find the discussion (link) on iridium spark plugs. I'm looking for a replacement for the standard K20HR-U11 -
    $7 90919-01235 Toyota Genuine Spark Plug
    90919-01235 plugs for a 2014 Tacoma 4 liter V6.

    Thank you in advance for any assistance.
     
    rnish, Sep 5, 2016
    #1
  2. Sep 5, 2016 at 11:32 AM
    #2
    Jimmyh

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    Jimmyh Well-Known Member

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    Jimmyh, Sep 5, 2016
    #2
  3. Sep 5, 2016 at 12:31 PM
    #3
    hotrod53

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    hotrod53 Well-Known Member

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    I'm in complete agreement with swapping to iridiums on the first swap. I'm not into the designer plugs, i think they are snake oil, but extending my next plug swap to 100k, that's what I talking about.
     
    hotrod53, Sep 5, 2016
    #3
  4. Sep 5, 2016 at 12:36 PM
    #4
    Norton

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    Norton Senior Member

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    Norton, Sep 5, 2016
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  5. Sep 5, 2016 at 5:30 PM
    #5
    Chuy

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    Chuy Well-Known Member

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    I have 85K on NGK Iridium IX Spark Plugs. Engine idles fine and MPG remains 15-17, but on acceleration, I'm starting to feel the engine hesitate a bit. Will install new ones when the old ones hit 90K.

    Edit note: I randomly checked a plug every oil change - 10K, from about 30k to 60K.
     
    Last edited: Sep 5, 2016
    Chuy, Sep 5, 2016
    #5
  6. Sep 5, 2016 at 5:55 PM
    #6
    landphil

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    landphil Fish are FOOD, not friends!

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    I installed NGK iridium's when I first bought my truck over 6 years ago. I replaced them this summer with OE Denso coppers - after about 70,000 km (45,000 miles). The ground electrodes were badly worn, and the gaps were .060 - .068" when they started out at exactly .044". Installing correctly gapped denso's restored some fuel mileage, idle was way smoother again, and a the butt dyno results were a bit better too. I see no point to using iridium plugs in the 1GR if the life is going to be that short anyway.

    I've had good results with them in the wife's corolla though.
     
    landphil, Sep 5, 2016
    #6
  7. Sep 7, 2016 at 1:51 AM
    #7
    12345

    #7
    12345 1st time taco owner

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    Just did my spark plugs yesterday. After I hooked everything up. My first start died. Second time it started up. Is normal did that happen to anyone?
     
    12345, Sep 7, 2016
    #7
  8. Sep 7, 2016 at 2:04 AM
    #8
    Jimmyh

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    Jimmyh Well-Known Member

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    Just a fluke.
     
    Jimmyh, Sep 7, 2016
    #8
  9. Aug 25, 2020 at 2:53 PM
    #9
    SANTOS562

    #9
    SANTOS562 Well-Known Member

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    3” Toytec front lift, 2” rear blocks, iridium plugs, fender turn signals, HID reverse lights, BFG T/A KO2 285/70/17, chrome oval solid nerf bars
    I've had iridium plugs since 2016. Now in 2020, I've added approximately 80k miles to the miles already on my Taco when I purchased it (45k). I have a 2008 long bed double cab and it runs great! I hear the pros and cons of iridium plugs but I have to say I've nothing but good reporting from them.
     
    SANTOS562, Aug 25, 2020
    #9

Products Discussed in

NGK 6619 Iridium Spark Plugs LFR6AIX-11 - 6 PCSNEW
$38.95
Denso (4704) IKH20TT Iridium TT Spark Plug, (Pack of 1)
$7.78
NGK (4904) ILFR6T11 Laser Iridium Spark Plug, Pack of 1
$10.22
Toyota Genuine Spark Plug
$6.01
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