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Den so iridium tt plugs?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Alexfiggy, Oct 26, 2014.

  1. Oct 26, 2014 at 10:08 AM
    #1
    Alexfiggy

    Alexfiggy [OP] Well-Known Member

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  2. Oct 26, 2014 at 10:14 AM
    #2
    Maticuno

    Maticuno Resident Pine Swine

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    Regular Denso K20HR-U11 is all you need. No benefit to running the iridiums.[FONT=&quot][/FONT]
     
  3. Oct 26, 2014 at 10:15 AM
    #3
    Alexfiggy

    Alexfiggy [OP] Well-Known Member

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    Well I have them already .no issues with them ?
     
  4. Oct 26, 2014 at 11:02 AM
    #4
    nd4spdbh

    nd4spdbh Well-Known Member

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    if you have the V6 stick to the standard style denso or ngk plugs.... no need for the fancy high prices plugs.
     
  5. Oct 26, 2014 at 11:18 AM
    #5
    2000TRDTaco

    2000TRDTaco Well-Known Member

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    NGK plugs....the end

    I run them in everything I own with a spark plug.....will never switch to anything else
     
    Sterling_vH111 likes this.
  6. Oct 26, 2014 at 11:24 AM
    #6
    stump jumper

    stump jumper Well-Known Member

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    Just changed mine at 33k. I went std. Densos for all 6 based on something's I read. Glad I did. NGKs were all much harder to get out and gaps were in .046 range. Densos came out easy and gaps were .042.
     
  7. Oct 26, 2014 at 11:57 AM
    #7
    Maticuno

    Maticuno Resident Pine Swine

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    I'm not sure about running the iridiums in the 1GR, but my old '87 MR2 with the 4AGE ran worse on iridium plugs and better with standard copper.
     
  8. Oct 26, 2014 at 1:26 PM
    #8
    mbrogz3000

    mbrogz3000 Well-Known Member

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    +1 for standard coppers - either NGK or Denso (or both)

    I swapped mine out this time last year with some Denso iridiums - absolutely no benefit. Iridiums are only needed for use with the Supercharger.

    Coppers are cheap enough, change them @ 30k or earlier.
     
  9. Oct 26, 2014 at 10:51 PM
    #9
    DPC08

    DPC08 Well-Known Member

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    Getting there...
    I've read that some people have problems running iridiums in the 1GR. Others don't. Copper seems to be the safer bet and are known to be OEM. As for Denso vs NGK, the NGKs I pulled all wore a lot more (larger gap) than the Densos. Therefore I stuck with Densos all around.
     
  10. Oct 27, 2014 at 3:44 AM
    #10
    Gearheadesw

    Gearheadesw Well-Known Member

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    Been running E3's for almost 2 years, no problems. Haven't looked at them, supposed to last 100 K miles, got like 40 on them. Maybe I should take a look at them.
     
  11. May 21, 2016 at 10:06 AM
    #11
    a70boostfiend

    a70boostfiend New Member

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    I decided to run these since i had them, getting worse mpg that the worn out coppers... I was getting 20mpg now only 17mpg. Going back to the coppers

    image.jpg
     
  12. May 21, 2016 at 10:08 AM
    #12
    a70boostfiend

    a70boostfiend New Member

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    P.S. Im VVT-i in damn near stock form minus the k&n replacement filter
     
  13. May 21, 2016 at 1:58 PM
    #13
    Chuy

    Chuy Well-Known Member

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    I've been running the NGK iridiums LFR6AIX-11 for the past 80K miles. MPG has always been the same - 16-18 mpg depending on load and speed. It's the OEM plug on wife's Lexus which is running on 2nd set with 180K. The only reason I got them was for longevity (not having to replace plugs every 30K); truck runs smoothly and responds well. Running Iridiums on my other Toyota's with no issues.
     
  14. May 21, 2016 at 5:56 PM
    #14
    PackCon

    PackCon Well-Known Member

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    I bought irridium plugs. No issues 2k miles later. I used to have issues starting but since replacement of factory plugs at 35k miles I have no issues. It coukd just be a coincidence though.
    Me personally I like only replacing my plugs every 100k miles like the rest of the world. I also don't irrationally freak out I'm doing something different than the holy Toyota engeneers recommend :goingcrazy:
     
  15. May 21, 2016 at 9:53 PM
    #15
    Pigpen

    Pigpen My truck is never clean

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    Access cab toolbox/ dog bed with seats and headrests deleted, waterproof TRD seat covers, yellow wire mod, diff breather relocated to tail light, engine block heater, Leer topper with Yakima tracks and rack, Yakima rack on cab, Ride Rite with Daystar cradles, CBI hidden front hitch, wired for winch front and rear Warn quick connect, Warn x8000i on external carrier, sway bar delete, trailer plug relocated to bumper, Pelfreybilt IFS and Mid skids, ECGS front diff bushing, ARB CKMA12 compressor, 255/85/16 Toyo M55 load E tires on stock steel rims, Up2NoGood heated mirror kit, Husky X-act Contour front floor liners, Northstar AGM 27F battery, Pelfreybilt bolt on sliders with kickout and top plates, TRD Pro headlights, Depo smoked tail lights, Energy suspension body mount bushing kit, Cobra 75WXST cb with rear mounted Wilson 3' antenna on Shmellmopwho mount, OME Dakar leaf packs with AAL, Billstein B110 rear shocks, 5100s with 885 coils and 1/4" spacers, SPC LR UCAs, 2wd low range mod
    I've had the Iridium plugs in for 30k miles with no problems. Even wit 33s and hundreds of pounds of extra weight, I still get about 18mpg in the summer.
     
  16. May 22, 2016 at 12:10 AM
    #16
    Chuy

    Chuy Well-Known Member

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    Is that mpg with the adjusted miles? I find it hard to believe.

    With larger tires, your odometer will read less miles covered than you are actually traveled. Best way to determined the difference is with a GPS. I used two to figure out my 265 70 R17 tires cover 1.05% more than the OEM 265 65 R17 tires. So, when my odometer shows 100 miles, I've actually traveled 105 miles.
     
  17. May 22, 2016 at 8:41 AM
    #17
    Pigpen

    Pigpen My truck is never clean

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    Yes, that's making the adjustment. In the winter, I'm at about 16.5. My summer psi is 40, winter is 35. Seasonal blends of fuel obviously factor in. Also, the fact that I drive a manual and can adjust my shift points for efficiency is a very important factor as well as the fact that I spend very little time over 60 mph - I mostly drive country roads. I was getting worse mileage with the 265/75/16 tires I was running before this, as they were a softer compound.

    I'm a bit of an exception, I know most people don't see these numbers. There's been a lot of trial and error, but it's been fun. In addition to my armor and fiberglass topper, I carry a shocking amount of weight in tools and other gear on a daily basis. I do the math for most fill ups. If I figured a true average, I'd be much lower. I put on a lot of miles creeping on rough Forest Service roads and wheeling deep snow in the spring and fall. The mpgs I stated are for my tanks that are mostly asphalt without towing a trailer. I'm closer to 15 when towing a loaded trailer - again, mostly under 60 mph (one of the most important factors to achieve these results). I think another important factor is that I'm still running a stock bumper. When I go to 4.10 gears I'll probably take a hit too.
     
  18. May 22, 2016 at 12:23 PM
    #18
    Chuy

    Chuy Well-Known Member

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    Gotcha. I have the heaviest OEM Tacoma - 4 door long bed 4X4; and with heavy deep lug mud terrain tires. When I drive in Mexico I can get 17-18 as I rarely go over 65mph. At home in San Diego, I'm mostly 70-75 on the highway, with AC on; so my mpg is usually 15-16. My air is 36 psi year round, except when I hit the desert.
     

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