Do these use spark plugs say anything about my engine?

[evan5291]

Do these spark plugs look normal after 70k miles? Just want to see if there is anything wrong I should be aware of. Note that one of the plugs in the picture is the brand new one.

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[jloshotz]

Looks fairly normal to me for a 70,000 mi. plug 🫡

 

[Skye]

Welcome,

https://www.mustang6g.com/forums/threads/introduce-yourself.6728/

Given the mileage, if they were taken from my vehicle, I'd not be concerned.

Are you replacing as part of a refresh, or, are you concerned about something?

 

[robvas]

Looks like it might be running a little rich based on all those little black carbon specks

 

[evan5291]

Looks like it might be running a little rich based on all those little black carbon specks

I have a ford performance tune. I wonder if I need to upgrade the air intake to help it breath better.

 

[K4fxd]

I don't see signs of it being rich what I think I see is signs of detonation.

I would need to see the plug in person to know for sure.

 

[robvas]

Can you take a picture of all the plugs not just one?

 

[SnowFox]

Looks normal to me.

I understand people always wondering though. Shiny plugs go in. Dirty burned deposit filled plugs come out. But when you consider the environment it's in ugly is normal

 

[ice445]

Doesn't look horrible, a bit sooty and perhaps some detonation evidence (carbon flecks in the porcelain), but the ceramic ring looks Carmel colored and normal. What cylinder was this from? If you're getting detonation usually the back two cylinders will look different than the others.

 

[evan5291]

Doesn't look horrible, a bit sooty and perhaps some detonation evidence (carbon flecks in the porcelain), but the ceramic ring looks Carmel colored and normal. What cylinder was this from? If you're getting detonation usually the back two cylinders will look different than the others.

This was the front passenger side. The back plugs seemed to be less dirty. Sorry no other pictures just this one. This plug seemed to be the dirtiest.

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