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The Truth About Spark Plugs....

Discussion in 'Technical Chat' started by chris4x4, Apr 20, 2011.

  1. Dec 10, 2013 at 6:14 PM
    #161
    chris4x4

    chris4x4 [OP] With sufficient thrust, pigs fly just fine. Staff Member

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    Copper = Better conductor of electricity (better spark)
    Iridium, Platinum, Boronidium, Lasers = Longer life, but not a hotter spark.
     
  2. Dec 10, 2013 at 6:17 PM
    #162
    DoorDing

    DoorDing Intentionally obtuse

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    yes
    I see you've sided with the coven.
     
  3. Jan 13, 2014 at 10:14 AM
    #163
    FishaRnekEd

    FishaRnekEd Well-Known Member

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  4. Jan 13, 2014 at 4:42 PM
    #164
    worthywads

    worthywads Well-Known Member

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  5. Feb 3, 2014 at 6:42 AM
    #165
    Marcoc

    Marcoc Well-Known Member

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    When i purchased my new to me Tacoma I serviced the diffs, T-case, synthetic motor oil, fuel system cleaner, and Denso plugs with the ones Toyota recommends, and air filter replacements. I do all service on any used vehicle I buy, in this case my Tacoma had 38k miles. My question is I am at 50k miles and drive mostly city stop and go should I replace them its been 12k miles. I mean they are cheap enough and easy to do. I also own a Mustang Cobra and I know many who replace the plugs every other oil change :eek:.
     
  6. Feb 3, 2014 at 6:48 AM
    #166
    Texoma

    Texoma Well-Known Member

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    If it makes you feel better to replace them, then go ahead, the recomended interval is 30k. Maybe do it when your odometer reaches 60k and see how you make out.
     
  7. Feb 3, 2014 at 6:54 AM
    #167
    Marcoc

    Marcoc Well-Known Member

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    good call. 20k it is.
     
  8. Sep 24, 2014 at 7:07 PM
    #168
    Shauncho

    Shauncho Embrace your inner Bro-ness

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    sorry to revive a dead thread, but what is it that they sell at the dealerships? the NGK's or the Denso? I'm guessing Denso.
     
  9. Nov 21, 2014 at 2:19 PM
    #169
    jkulysses

    jkulysses Well-Known Member

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    I just picked up 4 plugs for my 98' 2.7 from the dealer for $2.22 each. At that price it wouldn't make any sense to not buy the oem plugs straight from the dealer. Part# 90919-01176 & on the actual Denso plugs it says K16R-U.
     
  10. Mar 30, 2015 at 5:23 AM
    #170
    127.0.0.1

    127.0.0.1 AKA ::1

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    denso
     
  11. Dec 15, 2015 at 6:13 PM
    #171
    TRVLR500

    TRVLR500 Well-Known Member

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    When I bought mine with 120,000 on it I put in NGK iridiums. Only because they last so long. I'll pull them at 50,000 and see how they look. I suspect copper is a better performer but I like the idea of less maintenance. They seem to work fine for me so far with 20,000 on them.
     
  12. Jan 20, 2016 at 7:30 PM
    #172
    midewo

    midewo Member

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    yeah,
    was checking my maintenance log on my 2002 tacoma 2rz-fe (106k), and somehow 40K ago (before i was a tw member), i installed myself bosch platinum +4 (4418) plugs. i was sold them at a so cal auto parts place...kragen. but i have had no problems... my mileage is good, truck runs smooth, has never failed smog. i did have to replace my front o2 sensor 15k miles later... is that related??? the new toyota o2 is still going strong, so i am not sure the bosch caused that.

    so now what do i do???? the bosch have been installed for almost 10 years!!! i looked / verified in my om, the oem denso/ngk plugs stated earlier/above.... should i change the bosch out and use the denso k16r-u11 ???? should i keep using the bosch, but get new ones????

    i think i should use the oem denso's... with all the info from this great thread...but i am open to any feedback advice

    has my ecm learned the bosch characteristics? should i remove the negative bat cable while putting the densos in?
    thank you all!!!!!!!

    /midewo
     
  13. Jan 24, 2016 at 4:21 PM
    #173
    TRVLR500

    TRVLR500 Well-Known Member

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    If there is only 40,000 miles on the plugs they might not need to be replaced. Pull them out and look at them and then decide.
     
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