I've run the NGK ruthenium in my sierra with the 6.2 and they ran great but I notice they aren't the right gap.
Spark plugs are simple too, just need the proper sockets and swivels. Took me about 45 minutes. That middle plug on passenger side is the toughest, but twisting boot 180 degrees and pulling it out from the front made it a breeze!
You use a **NGK BR2LM.**
If you doing the spark plugs do the coils too. For the spark plugs use Denso 3499 (about 15 dollars each), for the coils use Denso 673-1310, (about 50 dollars each).
I’ve been running NGK Ruthenium for a year now with 0 problems. Supposedly they last longer and are more stable with less dispersion according to NGK. Going to stick with them instead of Iridium or Platinum.
I have ngk spark plugs and I went with z1 high ignition coils
if you don't want to pay for VW boxes, NGK ruethiums are a killer deal on rock auto, I've run 2 sets through out alltrack without a hiccup, about 60K total.
I have the ruthenium. Bought pregapped from Mountune. They are fine. They work no noticable change. I've put about 200k miles on them between by ST and RS and changed every 50k miles with no issues (both tuned and stock).
I’ve gotten fake NGK on Amazon before it’s very possible
Also dont use plugs for tuned cars if youre not tuned. Tuned cars run colder plugs. They are not the same dont listen to some of these comments lol
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