So i thought all sparks were created equally, apparently not..

Now that I have already changed the sparks, like an idiot i read over some threads and realized i shouldn't have used anti seize... should i be worried? , i'm getting a "service engine soon" and CEL sometimes, after driving under rough conditions but at the moment both lights are off. . . However yesterday after a couple laps autocrossing both lights came back on and then one at a time turned off again..

 

You absolutely should use anti sieze. Where did you put it? Haha you just put a little on the threads right? You just don't wanna get any on the electrode.

 

Ya man. Anti-seize is fine on plugs. Just apply it lightly, a couple of threads back from the electrode end to the hex end.

 

Changed my plugs twice, used antiseize both times..188k and no problems

 

WHen mating dissimilar metals, you absolutely should use anti-sieze.

Head to autozone and have the code read. Could be anything really

 

http://www.ngksparkplugs.com/pdf/tb-...1antisieze.pdf


Topic

The use of anti-seize compounds on spark plug threads that have a metal shell
plating (i.e. Zinc or Nickel plating).


Issue

Applying anti-seize to the threads of spark plugs that have a metal plating allows the installer to
mistakenly over-tighten the spark plug in the cylinder head; This stretches and fatigues the threads of
the spark plugs, causing a much higher probability that the plug will break during installation or in some
cases upon removal.

Solution

For spark plugs with special metal plating simply do not use anti-seize on initial
Installation; All NGK Spark Plugs are manufactured with a special trivalent Zinc-chromate shell plating
that is designed to prevent both corrosion and seizure to the cylinder head; Thus eliminating the need
for any thread compounds or lubricants.

Additional Information

NGK recommends only using spark plugs with metal plating on all aluminum head applications to
prevent damage to the head and plug. Metal shell plating acts as a “lubricant” which breaks away from
the main body of the spark plug during removal, preventing damage to the spark plug and or threads in
the cylinder head.


NGK Spark Plugs (U.S.A.), Inc. – Aftermarket Division
46929 Magellan Drive - Wixom, Michigan 48393





Summary

All spark plugs that have a blackened or dull appearance on the metal body offer no protection against
seizing or bonding to the cylinder head and so it is with these spark plugs that anti-seize would be
required. A spark plug that has a shiny silver appearance on the metal body usually indicates that the
plug is manufactured with metal shell plating and therefore will not require anti-seize

 

Yea, i tried to stay away from the electrode but I did read the NGK website that said they didn't require anti seize and that they could cause misfires, just curious if anyone else had a similar problem...

Im glad to hear that those who did use antiseize aren't having any issues..

 

I just did my plugs with NGKs and used a very thin application of anti-seize down to about 2 or 3 treads from the end. Haven't had any problems to date (about a month).

 

I put NGK in my Volvo and forgot to put anti-seize on it and was dreading the next time I had to change them, lol. After reading this I feel a lot better now, so I changed the plugs a couple months ago in my G using NGK as well. This time I did use anti-seize and haven't had any problems so far. I think your good as long as the electrode is clean.

 

No antisieze here. I too read the ngk site before hand

 

The torque wrench is your friend when working on cars. Although you can still over torque with thread lube, it won't likely end in disaster.

 

Spark plug rule of thumb: tighten til you feel resistance then give extra 1/8-1/4 turn.