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Yeah I searched, but still wanna ask

Discussion in '1st Gen. Tacomas (1995-2004)' started by Tacoguy, Jan 13, 2010.

  1. Jan 13, 2010 at 6:52 PM
    #1
    Tacoguy

    Tacoguy [OP] Well-Known Member

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    Well I realize that the winter cold and winter gas has a huge impact on my current crappy MPG's. However I was wondering whether my NGK Iridium plugs are playing a role in my current MPG loss.

    I thought the irridiums would do better, however from what it appears the twin electrode coppers are best. Anyone experience any MPG issues or performance issues with NGK iridums?
     
  2. Jan 13, 2010 at 7:07 PM
    #2
    Idrivetoys

    Idrivetoys Well-Known Member

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    if im not mistaken Iridiums are a colder burning plug, may not be the best option for winter. just my .02


    Ryan
     
  3. Jan 13, 2010 at 7:14 PM
    #3
    Tacoguy

    Tacoguy [OP] Well-Known Member

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    Yeah I was thinking along those lines. This is the first winter after I installed the iridiums, so that may be why I am having issues. During the summer I did not seem to notice anything.
     
  4. Jan 13, 2010 at 7:19 PM
    #4
    HondaGM

    HondaGM Roll Tide

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    i dont think your plugs are the problem.these trucks drink more gas than a v8.i had a 03 reg cab short bed 2.4 5 speed, it got 40mpg.my 09 dc 4x4 auto might on a good day get 20mpg.
     
  5. Jan 13, 2010 at 7:26 PM
    #5
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    The best performing plug for the 3.4 is the OEM plug from yota.
     
  6. Jan 13, 2010 at 7:27 PM
    #6
    4WD

    4WD cRaZy oLdmAn

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    I think the dual electrode plugs that Toyota recommends (pretty sure they're OEM, correct me if I'm wrong Chris) are alot better because with a standard single electrode plug the spark generated by coil paks arcs vertically (from center of electrode to the electrode tip) & since (at least the 3.4 V6) is a "Hemi" head combustion chamber configuration (plugs are threaded straight down & not angled in the head, the arc is thrown across the duaL ELECTRODE HORIZONTALLY for better combustion I assume.....:burnrubber:
     
  7. Jan 13, 2010 at 7:29 PM
    #7
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Correct, but all pent roof CC's dont need a dual electrode plug. The 3.4 however, gets best results from the OEM Denso dual ground plugs.
     
  8. Jan 13, 2010 at 7:30 PM
    #8
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    Excellent theory.
     
  9. Jan 14, 2010 at 7:37 AM
    #9
    Tacoguy

    Tacoguy [OP] Well-Known Member

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    Hey Chris,

    Do you think that it has to be Denso's. I bought Dual Ground NGK coppers, being that those are the only ones that autozone sells.
     
  10. Jan 14, 2010 at 9:16 AM
    #10
    humanoid

    humanoid bite me

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    Both NGKs and Densos will be fine for your truck.
     
  11. Jan 14, 2010 at 9:21 AM
    #11
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    X2.
     
  12. Jan 14, 2010 at 10:01 AM
    #12
    Tacoguy

    Tacoguy [OP] Well-Known Member

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    Ok thats good. I would buy Denso's but since I work at autozone (Insert Autozone Jokes here. :D) and get a discount, might as well go with the NGK's.
     
  13. Jan 14, 2010 at 3:18 PM
    #13
    Beau02

    Beau02 Black Taco

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    They have you heading the right direction with the dual ground OEM plugs. I put NGK iridiums in a few months ago and my (3.4L) gas mileage went from 20.0 to 18.3. I swapped them back out this weekend with the OEM Denso's and filled up this evening on my way home from work. Got back up to 19.8.
     
  14. Jan 15, 2010 at 3:19 AM
    #14
    4WD

    4WD cRaZy oLdmAn

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    OH YEAH now I remember what we used to call NGK plugs,
    we called them " NFG's" ( No-Fucking-Good ).....:D:D:rofl::rofl:
     
  15. Jan 15, 2010 at 4:34 PM
    #15
    Tacoguy

    Tacoguy [OP] Well-Known Member

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    Bed Liner, Running Boards, Cargo Net, Deck Plate Mod, K&N Air Filter, NGK Iridium Spark Plugs
    Well some good news to report. I just changed the plugs back to the dual ground copper NGK's. As soon as I ran the truck I felt a lot more pep. It was incredible. Most things that I do to the truck do not seem to make a difference. However changing these plugs seemed like night and day. Now hopefully the MPG's will go back up as well.
     
  16. Jan 15, 2010 at 4:51 PM
    #16
    4WD

    4WD cRaZy oLdmAn

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    That IS good news Bro' , glad things are running better......:cool::D:cool:
     
  17. Jan 15, 2010 at 8:58 PM
    #17
    Idrivetoys

    Idrivetoys Well-Known Member

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    keep us posted, ill probably change mine out when i get back off leave they are relatively old plugs
     
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