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Spark Plugs

Discussion in 'Performance and Tuning' started by aramirez73, Aug 14, 2016.

  1. Aug 14, 2016 at 5:45 PM
    #1
    aramirez73

    aramirez73 [OP] The Ayatollah of Rock n Rolla!

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    I have only done a lil research that our Tundra manual says to use either Denso or NGK spark plugs but both these offer a small range of diff options within ther groups so I wana hear from Tundra world what u guys use like I've seen from Denso has a fuel saver a performance a standard options as well as NGK has 3 options any one using those other options other than oem?
     
  2. Aug 14, 2016 at 5:54 PM
    #2
    Mike

    Mike Tread lightly.

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    yep bank account is running low from it..
    Denso.. I keep with oem. If the plugs are burning normally with good wear and heat range in your engine why change?

    Edit don't believe all the hype on spark plugs once they start to wear, no matter what they are made of, they all go out... ... Bigger thing ecms are good at spark plug burn. Unless you have a (blower) s/c not worth the extra money on plugs.. you not going to save that much in fuel cost do to the ECM relearning the burn rate on the plugs.... On a stock engine keep oem plugs in unless your having problems...
     
    Last edited: Aug 14, 2016
    ColoradoTJ likes this.
  3. Aug 14, 2016 at 6:58 PM
    #3
    ColoradoTJ

    ColoradoTJ Calm your tits

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    I have always used OEM plugs from the dealership and never had an issue.
     
  4. Aug 14, 2016 at 7:04 PM
    #4
    Mike

    Mike Tread lightly.

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    yep bank account is running low from it..
    I forgot to add.... Only use NGK or denso... Use anything else you might be pulling the head off and Helicoil it.. just a fyi...
     
  5. Aug 14, 2016 at 8:09 PM
    #5
    aramirez73

    aramirez73 [OP] The Ayatollah of Rock n Rolla!

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    Thanks guys!
     
  6. Aug 14, 2016 at 8:22 PM
    #6
    matluth

    matluth Fish On!

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    18"X9" FN BFD's rims, 295/70R/18E Cooper Discoverer STT Pro's, upgraded to Old Man EMU coil-overs/shocks. Toytec shackles Next: true dual exhaust, new UCA's.
    OEM. OEM iridiums are supposed to be changed at 130K. I pulled out two of mine and stopped. Both looked like new at 60K mark/9 years. My plug wires are amazingly still decent to. Go figure. I have no problem replacing plugs or wires, but not yet.
     
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  7. Aug 14, 2016 at 8:28 PM
    #7
    Mike

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    yep bank account is running low from it..
    3uz-fe doesn't have wires... Coil over sparkplug.. same as my 2uz-fe....
     
  8. Aug 14, 2016 at 8:35 PM
    #8
    matluth

    matluth Fish On!

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    I could have stated that better. Although very short, the coil/igniter "wires" are like new at 9 years. To me...plug wires. (Remember I'm an old school fart) I'm assuming that the coils would/or should be replaced at the same time as the plugs at 130K, but don't quote me on that.
     
    Last edited: Aug 14, 2016
  9. Aug 14, 2016 at 9:04 PM
    #9
    Mike

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    yep bank account is running low from it..
    Now you have to inspect the boots on the coil and look for cracks in the case where the coil is at.. if any are found replace the coil.

    The bad now you must have a. Lab scope to prove coil failure or prefailure do to the ECM adjustment in burn. Mainly you look at sign wave and amp draw... Amp draw I look at more than sign wave anymore.
     
  10. Aug 15, 2016 at 5:00 AM
    #10
    matluth

    matluth Fish On!

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    I think Accel makes aftermarket coils but I haven't found too many good reviews on them. I would guess that it would be best to replace with OEM coils if one should ever fail. The OEM coils must be pretty decent. I don't recall anyone mentioning coil failure here. Yet. Remember when you only had one coil to replace?
     
  11. Aug 15, 2016 at 5:15 AM
    #11
    bsktball55

    bsktball55 New Member

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    Glad you posted that. I looked in the manual, but didn't see that. I thought I read they were Iridium so I was expecting them to last a while, but wasn't sure when they were supposed to be replaced. In my Tacoma they used Copper plugs and they had to be replaced at 30,000 miles.
     
  12. Aug 15, 2016 at 5:18 AM
    #12
    Mike

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    yep bank account is running low from it..
    My 86 Toyota hilux has one coil.. always fun bringing out the timing light so you can adjust the distributor...

    My Tacoma last year after 19 years (275,000 miles) the coils where not bad they where noise and back feeding into the ECM.. replace them with Wells and no problems to report.
     
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  13. Aug 15, 2016 at 6:11 AM
    #13
    matluth

    matluth Fish On!

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    You obviously get as much sleep as I do.
    I'll double check my user manual. All change intervals/level are in the user manual. The iridium plug intervals are definitely over 100K.
     
  14. Aug 15, 2016 at 9:05 AM
    #14
    bsktball55

    bsktball55 New Member

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    Yeah, they should be, I put Iridiums in my Tacoma and they lasted well over 100,000. I just didn't see the interval in the manual. Glanced through it too fast.
     
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  15. Nov 29, 2016 at 2:15 PM
    #15
    MookTastic

    MookTastic Because I was inverted!

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    Any specific Densi model number recommendations? I'm seeing quite a few options. Just curious if either is more preferred than others?
     
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