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When are y'all changing plugs. I've changed them once already at 25k and now I'm at 38k. If y'all are tuned do you change them more frequently?
 

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I had to adjust my stock ones twice now. I am sitting at 28,XXX miles on a 2012 EB tuned, and this afternoon actually, I will be installing a set of NGK's. Hopefully they will have better spark and last longer then 10k miles!
 

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About like Carlos, I don't trust them more than 10--12K miles.
 

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I have around 13k on mine, and about ready to change. I can feel a very slight rough idle at times. Also very cheap and easy.
 

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I think somewhere between 10-15k miles if you're tuned seems to be a sweet spot.
It's somewhat ridiculous, but it's cheap, easy and makes it run better.
 

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I have around 13k on mine, and about ready to change. I can feel a very slight rough idle at times. Also very cheap and easy.
They doubled in price due to all ecoboost owners changing them.
 

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Mine haven't been done as far as I know. Planning on doing them in the spring. 38k miles currently.
 

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Just did mine at 8300 miles. Truck sat at the dealer for over a year before I came along and bought it. Changed the boots at the same time. Idles way better than before. Gapped to .030 completely stock except a drop-in aem dry filter (if that even matters), catch can and a boost gauge. No hole in my cac.
 

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I recommend no wider than .028 stock or tuned. I lean toward .025-.026, I find it idles a bit better than the wider gap.
 

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I recommend no wider than .028 stock or tuned. I lean toward .025-.026, I find it idles a bit better than the wider gap.
I agree with Bruce. My truck prefers .025.
 

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.022 for me but I would recommend .028 if tuned.
Yes, for anyone running more than "simple bolt-ons" .... tighter is better.
 
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