Hey, so building on the fairly current "RECALL" thread, my MY16 had the TSB for coils and plugs performed on it. The dealership sent me pics of the plugs. How concerned should I be for the plug that shows its core insulator broken off?

 

Here's what a few of mine looked like at 12.7k

 

Weird, what happened to the other posts in this thread? There were three others before bigkraig posted.

 

You made 2 duplicate posts. Comments on both of them. Mods should delete one.

 

Those plugs look horrible - how many miles? Way rich

 

Wow! Sorry, not sure how that happened. Yes we should delete one.

 

That's what you get for driving like that LOL.
But man, they look torched.

 

I think the question is should he be worried by the missing ceramic insulator and possible damage to the engine internals.... as per Nam Vets experience where his engine needed rebuild.

No conclusions can be made from the colour and mixture, idling, traffic etc can effect the plugs- you need to do a hard run and chop to read anything into it and this is old hat now with dyno's, knock sensing EGT readings etc.

 

Your thread wakes up this question:
How worried should I be about my spark plugs?

Do you have the new spark plugs part number?

 

Those plugs look like CRAP . the engine looks to be running very rich ,,,,,,do you now witch cylinder the plug with the damage insulator came off .....?

 

Here are my plugs, changed out at 11,038 miles because I am about to drive the car to Florida. 1,626 of these

miles were on the track. They look pretty good to me, certainly no fouling it was time to change them as I won't be back home for about 4,000 miles and I prefer having my home dealer service the car.

 

That was the point of my thread, really.