I know the recommended interval is 105k, but since I had the TB done in Sept, I figured I would change the plugs as well. I've never changed a plug before and it really wasn't that bad. Took me about 2 hours and cost $70 for the plugs, antisieze, and dielectric, and $60 for a torque wrench that went down to 13ftlbs.

How do these look for 84,000 miles?

 

Most of them look pretty good!!
Normal wear!
What is of concern tho, is that one or two of them isnt the same color or uniform as the others.
The gap on all six look great

4 of them were hotter than 2.
Do you remember which plugs were in which cylinder?
Next time , write down the order they were in!

Be sure to check the torque on them in a month or so, as the j-series engine like to eject #5

 

As I was taking them out I said to myself "hmmm, maybe I should be keeping track of which cylinder they came out of" but, I did not.

Which two are you talking about that are different color? In the top pick I can see the third from the left being whiter than the others, but in the bottom pic, I see the one of the right and the third from the right being darker than the others.

 

Look at the top of the threads, where the white ceramic and gap are. Some are more darker than others.


Which is okay now, cuz the order is unknown.

But this proves that you'll need to change them earlier than 105k!

Maybe in a month from now or so, recheck the torque on the front set.(only cuz it's easier to access, unless you really wanna recheck all 6)