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Spark plugs @ 45k, wear, erosion

Discussion in '2nd Gen. Tacomas (2005-2015)' started by gmcuajo, Mar 12, 2017.

  1. Mar 12, 2017 at 6:03 PM
    #1
    gmcuajo

    #1
    gmcuajo [OP] Well-Known Member

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    Just -sylvania ZXE on head & fog lights -the tires
    Just changed spark plugs @ 45k miles. If look at pics will see the wear (erosion) on them.
    Definitely that is why manual says replace every 30k for the V6.

    2013 taco DB TRD OR, v6 4.0L
    Stock DENSO K20HR-U11

    IMG_4254.jpgIMG_4255.jpg
     
    gmcuajo, Mar 12, 2017
    #1
  2. Mar 12, 2017 at 6:12 PM
    #2
    Holeshot

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    Holeshot Well-Known Member

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    Mine will be due in 5 thousand. Wish the 4.0 used iridiums like the 2.7 four cyl.

    Guess I will change front and rear diff fluids along with transfer case oil at 30k also.
     
    Holeshot, Mar 12, 2017
    #2
  3. Mar 12, 2017 at 8:01 PM
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    winkel

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    winkel Well-Known Member

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    I just changed mine at 38,000 miles and they didn't really look too bad. I would expect they could have gone a little while longer but it wasn't too bad of a job.
     
    winkel, Mar 12, 2017
    #3
  4. Mar 12, 2017 at 8:26 PM
    #4
    gmcuajo

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    gmcuajo [OP] Well-Known Member

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    Just -sylvania ZXE on head & fog lights -the tires
    4.0L doesn't use the iridium, but I think you can find iridiums that fit.

    I did the diffs and transfer case oil changes with
    $30 Mobil 1 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
    Mobil 1 75W-90.

    Honestly the transfer case oil looked like new. Front wasn't that bad, and rear obviosly looked blackish...
     
    Last edited: Mar 12, 2017
    gmcuajo, Mar 12, 2017
    #4
  5. Mar 12, 2017 at 8:32 PM
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    gmcuajo

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    gmcuajo [OP] Well-Known Member

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    Just -sylvania ZXE on head & fog lights -the tires
    The sixes of mine looked like in the picture.

    I use 87 octanes regular, if that matters.
     
    gmcuajo, Mar 12, 2017
    #5
  6. Mar 12, 2017 at 8:57 PM
    #6
    Chuy

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    Chuy Well-Known Member

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    It can if you put them in. V6 takes same Iridium plugs as a Lexus ES350. My Taco is going on 95K with
    $39 NGK LFR6AIX-11 - 6 PCSNEW
    NGK LFR6AIX-11 Iridiums. I did pull them out at 85K to clean and re-gap. One thing I have learned; don't get entry level Iridiums. Get the ones with nickel ground electrodes; they will last longer without re-gapping. My next set, Denso Iridium
    $53 SK20HR11 ---- IRIDIUM PLATINUM power pack Spark Plugs -- # 3421 ----- 6 PCS NEW
    SK20HR11, are sitting on my work bench...
     
    Chuy, Mar 12, 2017
    #6
  7. Mar 12, 2017 at 8:59 PM
    #7
    KenLyns

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    KenLyns 8.75" Third Member

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    What were the gaps on the removed plugs? Were the NGK plug gaps on bank 2 slightly larger?
     
    KenLyns, Mar 12, 2017
    #7
  8. Mar 13, 2017 at 7:39 AM
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    lynlan1819

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    lynlan1819 Well-Known Member

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    gap set at for Denso k20hr-u11 0.34-0.41
     
    Last edited: Mar 13, 2017
    lynlan1819, Mar 13, 2017
    #8
  9. Mar 13, 2017 at 7:47 AM
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    vbibi

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    vbibi Well-Known Member

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    You are a genius! whauuuuu, now you know why these guys went to school and become mechanical engineers.
     
    vbibi, Mar 13, 2017
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  10. Mar 13, 2017 at 10:26 AM
    #10
    gmcuajo

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    gmcuajo [OP] Well-Known Member

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    Just -sylvania ZXE on head & fog lights -the tires
    Really!
    Me too.

    Dumb!
     
    gmcuajo, Mar 13, 2017
    #10
  11. Mar 13, 2017 at 10:28 AM
    #11
    gmcuajo

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    gmcuajo [OP] Well-Known Member

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    Just -sylvania ZXE on head & fog lights -the tires
    1.1mm

    That is the 11 at the end of part #
     
    gmcuajo, Mar 13, 2017
    #11
  12. Mar 13, 2017 at 10:37 AM
    #12
    Blockhead

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    Blockhead Well-Known Member

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    I would've just put new ones in at 85,000 instead of cleaning and re-gapping etc.
     
    Blockhead, Mar 13, 2017
    #12
    SilverBullet19 likes this.
  13. Mar 13, 2017 at 12:45 PM
    #13
    Chuy

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    Chuy Well-Known Member

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    Engine was running fine; my intent was to check them and clean them, which I should have done at 60K. Iridiums usually last 100K (120K recommended for the Lexus).
     
    Chuy, Mar 13, 2017
    #13
  14. Mar 13, 2017 at 2:56 PM
    #14
    lynlan1819

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    lynlan1819 Well-Known Member

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    You did just fine,everybody has there own idea of when too replace plugs..
     
    lynlan1819, Mar 13, 2017
    #14
  15. Mar 13, 2017 at 6:55 PM
    #15
    gmcuajo

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    gmcuajo [OP] Well-Known Member

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    Just -sylvania ZXE on head & fog lights -the tires
    .
     
    gmcuajo, Mar 13, 2017
    #15

Products Discussed in

Mobil 1 104361 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
$29.67
DENSO ---SK20HR11---- IRIDIUM PLATINUM power pack Spark Plugs -- # 3421 ----- 6 PCS NEW
$52.04
NGK 6619 Iridium Spark Plugs LFR6AIX-11 - 6 PCSNEW
$38.95
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