40k Spark Plug Change - 2.0T

[angrykitty]

you can’t tell the difference between picture one and picture two ? Light and dark. NGK made the chart. Contact them and say you see no difference in the spark plugs lol You better stick to letting a mechanic do your work for you.

Blown up to 3-4 times the original size, these plugs all have different characteristics. Have they quit teaching how to read in CA too now?

LOL Since you obviously believe these are the actual sizes of a spark plug, LOL you better stick to LOL letting a mechanic do your LOL work for you! LOL LOL BRO Contact your wife who has a penis and have him check things out for you. You obviously believe that ALL of these pictures are EXACTLY what a spark plug will look like, the size and detail are 100% accurate to EVERY scenario.

You're VERY sexist and coming from a CA person, that's UNACCEPTABLE! I'm a girl!

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[Jeep4Win]

I plan on doing mine next weekend. 67k on mine. Ended up getting the NGK plugs.

 

[JLfromCA]

I can’t be of any further help. Contact an optometrist and NGK..

 

[jmr]

It probably is running better those plugs had compression leakage.

 

[NeilP]

I wonder what is eating away at the top of the insulator?

 

[mwilk012]

I wonder what is eating away at the top of the insulator?

That is Mopar brand dielectric grease.

There is absolutely nothing unusual about these plugs and they would have gone another 60k just fine.

 

[Diesel1776]

 

[Trojan_Actual]

It probably is running better those plugs had compression leakage.

Makes sense. Thank you!

 

[azjl#3]

BMW 335i, turbo direct injection, planned 40,000 mile plug changes and 4,000 mile oil changes. With amsoil......

 

[Avar928]

I made a post about this a few years ago changing at 60k.
https://www.jlwranglerforums.com/forum/threads/60-000mi-spark-plug-change.80552/


Looks similar though yours are darker.

 

[Speed331]

Finally got around to doing mine. Ment to get it done @ 60k, but life shit kept me tied up until this weekend.
Here's what 70k mile plugs look like:

No error codes or miss-fires, still was running strong. Oil test from Blackstone came back perfect.
Visually they look really good for the mileage. Not much carbon and looks like the mixture has been darn near perfect.

But I think I got to it just in time as those electrodes are about done.
Replaced with NGK's.

 

[Heimkehr]

Here's what 70k mile plugs look like:

Visually they look really good for the mileage.
But I think I got to it just in time as those electrodes are about done.

They're Iridium plugs. The electrodes will look tiny from new. Provided the new plugs were the same as the originals, their electrodes should appear identical.

 

[Speed331]

They're Iridium plugs. The electrodes will look tiny from new. Provided the new plugs were the same as the originals, their electrodes should appear identical.

Yeah, I thought they looked degraded using mark one eyeballs. But when I looked at the pictures zoomed in I realized that, except for the color, they looked the same as new.

 

[Heimkehr]

Yeah, I thought they looked degraded using mark one eyeballs.

I've had LASIK, which from now on I'll refer to as my Mk. II eyesight.

 

[Wulfgott]

I'll have to follow this, Im due as well. How hard was it? I hear there is one plug that is a pain to get to. I remember on the 3000GT i had to remove the entire intake plenum to get to a few plugs.. Anything like that here?. Which plugs did you end up using?

I had a 1992 3KGT VR-4. What a pain that was. I also had problems with the ignition cables causing issues when the bay heated up forcing replacement as well. Miss that car though.

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