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-   -   How do these plugs look? (http://www.the370z.com/engine-drivetrain/138289-how-do-these-plugs-look.html)

dvboy 10-24-2022 04:19 PM

How do these plugs look?
 
1 Attachment(s)
Just changed my plugs today,to me they look pretty good.Car has the regular bolt-ons (intake/exhaust) 70k on a custom tune.The gap on all but one of them was .044,the one that's 3rd from the left was .050
Attachment 151211

Spooler 10-24-2022 06:48 PM

Quote:

Originally Posted by dvboy (Post 4031265)
Just changed my plugs today,to me they look pretty good.Car has the regular bolt-ons (intake/exhaust) 70k on a custom tune.The gap on all but one of them was .044,the one that's 3rd from the left was .050
Attachment 151211

Are you running a fuel additive/cleaner? You have some chalky deposits on them.

dvboy 10-24-2022 08:00 PM

Quote:

Originally Posted by Spooler (Post 4031272)
Are you running a fuel additive/cleaner? You have some chalky deposits on them.

I did put a fuel cleaner in a couple weeks ago if that means anything?

ZoomZ 10-24-2022 09:07 PM

Look normal. Nice and dry anyway. Those deposits can be many things.
Short driving distances, low quality fuel, water/antifreeze in fuel. I don't think the additive would be noticeable in weeks. I could be wrong with the additive, as there are bad ones out there.

https://ngksparkplugs.com/en/resources/read-spark-plug

BORNGEARHEAD 10-24-2022 09:14 PM

There's 1 that does not look like the rest.

Spooler 10-24-2022 10:53 PM

Quote:

Originally Posted by dvboy (Post 4031274)
I did put a fuel cleaner in a couple weeks ago if that means anything?

Yup, that is what I see. Otherwise they look ok besides the 3rd one from the left. That looks like oil or it could also be the cleaner cleaned that cylinder of a lot of junk.

Spooler 10-24-2022 10:55 PM

Quote:

Originally Posted by BORNGEARHEAD (Post 4031284)
There's 1 that does not look like the rest.

Would need it in my hands to see if it was oil or just carbon. Hard to tell from the picture.

Spooler 10-24-2022 10:56 PM

Quote:

Originally Posted by ZoomZ (Post 4031280)
Look normal. Nice and dry anyway. Those deposits can be many things.
Short driving distances, low quality fuel, water/antifreeze in fuel. I don't think the additive would be noticeable in weeks. I could be wrong with the additive, as there are bad ones out there.

https://ngksparkplugs.com/en/resources/read-spark-plug

If you constantly have ran it over time that is what it will do to the plugs.

dvboy 10-24-2022 11:28 PM

1 Attachment(s)
Thanks,they actually look better in real life,the close-up photo seems to make them look worse.With the link provided my plugs do closely resemble the “Normal Life” plugs.
Attachment 151212

stansens 10-30-2022 09:53 AM

Hi, I see different colored ceramics here and the gaps look rather large.


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