Sorry to be the Newbie to hijaack this thread - but I have a related question. My 2013 3.6l has 101,000 miles and I'm planning to dive in and change the plugs this weekend. I have watched a few YouTube videos - there are many little parts to remove. My key question: While I'm that far in, should I replace the coils as well? I don't have any symptoms of a bad coil AT THE MOMENT. My local AutoZone sells a bundle of all six for $130 (Bosch). It seems like good insurance while the "patient is open".
What do you think?