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Best options for 2012 prerunner 6 cyc sparkplugs.

Discussion in '2nd Gen. Tacomas (2005-2015)' started by phil2surf, Jun 23, 2017.

  1. Jun 23, 2017 at 9:09 AM
    #1
    phil2surf

    phil2surf [OP] New Member

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    What replacement plugs are you folks running out there? I am thinking about Iridium
    NGK LFR6AIX-11. The users manual is specific about replacement plugs, but various
    sources say these are ok to use, any thoughts or suggestions?
     
    ChadsPride likes this.
  2. Jun 23, 2017 at 9:23 AM
    #2
    DanoDavis

    DanoDavis Alright meow

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    I just stick with the factory copper plugs.
    Denso K20HR-U11

    My truck is very modded as well, and I have zero issues with the copper plugs.
     
    Lester Lugnut, Gabezz and ChadsPride like this.
  3. Jun 23, 2017 at 1:20 PM
    #3
    PackCon

    PackCon Well-Known Member

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    I use the irridium. Have had them in for 31k miles and so far so good.

    I don't care to have to changer copper plugs every 30K when I dont have to
     
  4. Jun 25, 2017 at 7:45 AM
    #4
    hotrod53

    hotrod53 Well-Known Member

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    I installed Denso iridiums in all of my Tacomas. They're cost effective and they work. Not designer or snake oil-ish, they just do the job.
     
    outlawtacoma likes this.
  5. Jun 25, 2017 at 7:51 AM
    #5
    Plain Jane Taco

    Plain Jane Taco I'm sorry Dave. I'm afraid I can't do that

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    I'm running great on these.

    20170429_094538.jpg

    20170429_094619.jpg
     
  6. Jun 25, 2017 at 7:56 AM
    #6
    TenBeers

    TenBeers Well-Known Member

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    What I have heard is that not using the copper plugs and changing every 30k miles voids the emissions warranty, which I think is to 90k miles. Not sure if that is true, but just in case . . . I just stick with the stock Denso/NGK plugs since there is other maintenance going on every 30k miles. Easy to do, easy to remember, cheap, works great, and you know you've got good plugs.
     
  7. Jun 25, 2017 at 7:59 AM
    #7
    Plain Jane Taco

    Plain Jane Taco I'm sorry Dave. I'm afraid I can't do that

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    Just in California, I believe
     
  8. Jun 25, 2017 at 9:07 AM
    #8
    FadedComa

    FadedComa Failed Porn Star.........

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    I actually just installed these in my truck yesterday. Stock plugs made it to 103k and look like they could have did 20k more. Truck feels a little more peppy and no issues with install. Good luck with your choice but the ones you specifically named seem fine.
     
  9. Jun 25, 2017 at 10:16 AM
    #9
    Justanotherhemi

    Justanotherhemi Tin Foil Special Edition

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    I recently swapped out my Tacos plugs at 39.5k miles. They looked decent but I was concerned with them since my trucks prior life was rough. I followed advice here and just replaced with denso plugs from the dealer. Hope it helps.
     
  10. Jun 25, 2017 at 10:22 AM
    #10
    TenBeers

    TenBeers Well-Known Member

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    Wait, you ran stock plugs on a V6 for over 100k miles?
     
  11. Jun 25, 2017 at 11:57 AM
    #11
    Gabezz

    Gabezz Well-Known Member

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  12. Jun 25, 2017 at 12:33 PM
    #12
    taco2010trd

    taco2010trd Cyber Bully

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    I go with the recommended denso's and change every 30k miles. I'm kinda boring I guess
     
  13. Jun 25, 2017 at 12:47 PM
    #13
    Maticuno

    Maticuno Resident Pine Swine

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    Regular old copper Denso plugs. Can't be beat.
     
    Lester Lugnut likes this.
  14. Jun 25, 2017 at 3:34 PM
    #14
    FadedComa

    FadedComa Failed Porn Star.........

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    I bought the truck in april with 94k on it. Changed them yesterday at 103k. Had Denso on pass. side and NGK on driver side, so I assume it was still the stock set up. Plugs actually looked pretty damn good if they were indeed the stockers.
     
  15. Jun 25, 2017 at 5:44 PM
    #15
    Chuy

    Chuy Well-Known Member

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    2.5 inch lift; 5100's front; OME rear; Air Lift; dual batteries; Bestop bed cover; Nfab nerf steps; EBC rotors; Threadwright Claw MT tires; hood scoop LED light install.
    That's what I have in my Taco and coming up on 96K with them. At 80K I took them out for inspection and the ground electrodes were quite worn out, to about .055'ish; gap should be .043. NGK recommends against re-gapping Iridium plugs, but I had no choice as I had no replacements on hand. I re-gapped and installed, and the engine be running as smooth as ever. I now have Denso SK20HR11 on hand to replace the NGK's. These Denso's have a platinum tip electrode to reduce wear.

    BTW, those same NGK Iridiums came stock on wife's Lexus ES350 and recommended plug change is 120K. I replaced them at 118K and have same ones on hand for replacement at 200K.
     

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