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Twin Ground Electrodes Plugs - Sticker on my engine?

Discussion in 'Technical Chat' started by coldcanuk, Sep 3, 2009.

  1. Sep 3, 2009 at 8:21 PM
    #1
    coldcanuk

    coldcanuk [OP] Well-Known Member

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    I've just bought 6 NGK Iridium plugs for my 98 3.4L.

    Now I've read that a lot of people don't like the iridium and now I see the following sticker on my engine (picture attached)?

    My question(s):
    Will the Iridium plugs work fine?

    I don't see any of the listed NGK plugs with the twin electrode design?

    If I should go with the standard NGK plug, does anyone have the model number? I see 3 or 4 listed on the site and I couldn't find the model number searching this site.

    Thanks in advance for any help!

    P1000026 (Large).jpg
     
  2. Sep 3, 2009 at 8:32 PM
    #2
    wildjerseyfirefighter

    wildjerseyfirefighter I sell fishing and fishing accessories

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    iunno..ive been running the single ground regular ngk plugs in my truck for about 10K now with no problems
     
  3. Sep 8, 2009 at 2:51 PM
    #3
    i love tacos

    i love tacos Well-Known Member

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    According to the information that I found the engines require the "twin ground electrode" plugs. Toyota claims you will lose performance and gas milage w/ standard ground plugs. I can tell you I have had both and I did lose 2 mpg and also my performance suffered noticeably. (shifting wasn't as crisp nor was the acceleration.)
     
  4. Sep 9, 2009 at 9:05 AM
    #4
    revhappyleon

    revhappyleon Well-Known Member

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    I work at a dealership and in the last two years i've seen like 3 or 4 comas come in with misfires because they used the bosch +2 platinums instead of regular ngk's. I would try getting iridiums from the dealership. BTW my sister's mazda had the same issue when i used autolites in it and i couldn't figure out what it was til i asked a friend at mazda and he told me to use ngk's
     
  5. Sep 9, 2009 at 9:42 AM
    #5
    i love tacos

    i love tacos Well-Known Member

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    I'm with you. It cost me $250.00 once upon a time to find out that using a spark plug other than oem can cause a variety of issues. excess noise thru radio, misfires, poor gas mileage... Be very careful.
     
  6. Sep 9, 2009 at 9:48 AM
    #6
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    The 3.4 runs best with the OEM twin ground plugs.
     
  7. May 23, 2010 at 9:44 AM
    #7
    moto932

    moto932 What's the matter, Colonel Sandurz? CHICKEN?

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    thread revival! how do i check the gap on these twin electrode plugs?
     
  8. May 23, 2010 at 9:53 AM
    #8
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    I check from the electrode to the ground. Side of the electrode. Make sure both sides are the same gap.
     
  9. May 23, 2010 at 10:00 AM
    #9
    moto932

    moto932 What's the matter, Colonel Sandurz? CHICKEN?

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    thanks chris!
     
  10. May 23, 2010 at 10:02 AM
    #10
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Also, DO NOT put pressure on the center electrode. Use a pair of needle nose pliers to adjust, if needed, and only move the side onse.
     
  11. May 23, 2010 at 10:06 AM
    #11
    moto932

    moto932 What's the matter, Colonel Sandurz? CHICKEN?

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    will do, thanks
     
  12. May 23, 2010 at 10:14 AM
    #12
    dhurley

    dhurley Well-Known Member

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    Interesting, I was looking at getting those. I know in my wife's Corolla the MPG is way better with Bosch than with NGK.
    Would OEM be NGK, Denso or either?
     
  13. May 23, 2010 at 10:15 AM
    #13
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Either.
     
  14. May 23, 2010 at 10:24 AM
    #14
    dhurley

    dhurley Well-Known Member

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    Thanks.
     
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