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Anti-Sieze...Yes or No???

Discussion in 'Technical Chat' started by Elkhound, Mar 19, 2013.

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Anti-sieze... Yes or No?

Poll closed Apr 18, 2013.
  1. YES-always use anti-sieze

    52 vote(s)
    83.9%
  2. NO-follow plug manufacturers directions

    10 vote(s)
    16.1%
  1. Mar 19, 2013 at 8:03 AM
    #1
    Elkhound

    Elkhound [OP] Member

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    Greetings Tacoheads! I'm about to change my Denso Iridium plugs for the first time at 70k on my 2.7 2006 Taco. The question is whether or not to use anti-sieze? Denso has a website www.globaldenso.com/PLUG/ Just click on catalog downloads then click on Spark Plugs Training Manual 2005/2006 (English). This is a 100 page training manual. Page 61 gives notes for installing and removing Iridium plugs and there is no mention of using any anti-seize on Denso plugs. At www.ngksparkplugs.com there is a link under tech bulletins and releases on spark plugs and the use of anti-sieze. NGK recommends NOT to use anti-sieze due to a special trivalent Zinc-chromate shell plating on the threads. Both websites have you change the plugs on a COLD engine. So, what do you all think? Anti-sieze Yes or No?

    BTW I purchsed my plugs from www.RockAuto.com At $5.79 a piece. Even with shipping it beats Advance Auto at $8.99 a piece if you don't mind the wait. You can also search TW for RockAuto to get a discount code to use at checkout.




     
  2. Mar 19, 2013 at 8:04 AM
    #2
    joneill03

    joneill03 Look away, I'm hideous!

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    I used it. I've never heard not to use it on spark plugs though.
     
  3. Mar 19, 2013 at 8:23 AM
    #3
    huntdd

    huntdd Member

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    I always use anti-seize on plugs. I don't see what the downside would be. Rockauto is the place I go for most of my parts.
     
  4. Mar 19, 2013 at 8:30 AM
    #4
    jpneely

    jpneely Well-Known Member

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    Always! after 100,000+ miles those things can get seized up as shit! and you really dont want to to screw up a spark plug in your parking lot when you try and break it loose yourself.
     
  5. Mar 20, 2013 at 7:12 AM
    #5
    BamaToy1997

    BamaToy1997 ASE Master Tech Vendor

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    Some of the newer designed plugs have taken into account the issue of seizure of old spark plugs. However I have always used it on my engines. I do however make sure that I use a minimal amount, getting the threads wet, but not dripping, and am cautious to not let any get on the electrode tip, or the ceramic.
     
  6. Mar 20, 2013 at 7:18 AM
    #6
    medic2230

    medic2230 Ditch Doctor

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    I've never used it personally, on my 2000 Taco or my 2011 I just did. I've never had a problem.
     
  7. Mar 20, 2013 at 7:39 AM
    #7
    Janster

    Janster Old & Forgetful

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    ALWAYS!!!!

    Anti-seize is what it says - prevents seizing of two metals. It has nothing to do with the performance of the plugs because its applied to the threads and threads only. I use it on my plugs, I use it on my lug nuts. I use it on the mating surfaces between the axle hubs/rotors. I use it on just about everything that's a metal-to-metal contact surface that's exposed to moisture and can rust & seize. I use it at work on similar metal-on-metal situations.

    Not only does it prevent seizing metals, but it makes things a whole easier to take apart the next time you change your plugs (or fix it).

    And honestly - Any 'special coating' doesn't mean anything unless it has a long time history & reputation for doing what it claims. I wouldn't trust it.
     
  8. Mar 20, 2013 at 7:41 AM
    #8
    SoCaltaco65

    SoCaltaco65 Well-Known Member

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    YES! Especially in an Aluminum head.
     
  9. Mar 20, 2013 at 9:27 AM
    #9
    Collins

    Collins Well-Known Member

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    Any recommendation on what type Anti-seize to use
    for plugs??

    Thanks.

    PC
     
  10. Mar 20, 2013 at 9:33 AM
    #10
    hetkind

    hetkind Well-Known Member

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    Locktite makes a very good, high nickel anti-seize that I personally use...expensive and usually available at better parts houses.

    Howard
     
  11. Mar 20, 2013 at 9:49 AM
    #11
    streamreeper

    streamreeper Well-Known Member

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    the only reason not to would be the possibility of overtorqeing the plugs
     
  12. Mar 20, 2013 at 12:48 PM
    #12
    Collins

    Collins Well-Known Member

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    Thank you sir.

    PC
     
  13. Mar 20, 2013 at 1:03 PM
    #13
    tan4x4

    tan4x4 Well-Known Member

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    I use it all the time, on areas exposed to high heat, like the plugs, and exhaust. But I would NOT use it on head bolts, due to it possibly affecting the applied torque.
     
  14. Mar 20, 2013 at 3:24 PM
    #14
    newertoy

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    Of course--do not leave home without it!!!
     
  15. Mar 20, 2013 at 3:25 PM
    #15
    Dark_Taco

    Dark_Taco Feed him a hammer, he'd crap out nails.

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    This ^^
     
  16. Mar 21, 2013 at 6:12 AM
    #16
    BamaToy1997

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    Some people would say that was obvious, but you do make a good point by bringing attention to that. Do not EVER apply any kind of coating to any bolt that is a TTY bolt.
     
    Last edited: Mar 21, 2013
  17. Mar 21, 2013 at 6:55 PM
    #17
    Vstrom30

    Vstrom30 Well-Known Member

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    Denso and NGK both have write-ups about their zinc coating on the spark plug threads. It is no longer necessary on quality plugs with coating already applied. However, they do mention that cheap, crappy plugs with black threads that tight-wads use absolutely still need anti-seize. I know this info is hard to take for some, but it is what it is. I replace plugs as part of a 120k service, and I have never had an issue with stuck plug threads, and that is with Denso coming out, and Denso going back in. Trust me in saying that Toyota and Lexus don't anti-seize anything. If you want to use the stuff, go ahead, but don't sweat it if you didn't.

    Correction, they anti-seize the AF sensor threads, but that gets nasty-hot.
     
    Last edited: Mar 21, 2013
  18. Mar 21, 2013 at 8:11 PM
    #18
    Spoonman

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    Put a little on the threads of your sparky plugs.
     
  19. Mar 21, 2013 at 8:13 PM
    #19
    Spoonman

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    What's an AF sensor?
     
  20. Mar 22, 2013 at 6:13 AM
    #20
    Vstrom30

    Vstrom30 Well-Known Member

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    Air fuel sensors. New Toyota replacement AF and O2 sensors come with anti-seize already on the threads.
     
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