434 votes
I put Autolite Iridium plugs in my '06 N52 20k miles ago because of a crazy sale/rebate. It runs as smooth as a new one.
You're on the right track- replace those worn out plugs. Pre-detonation started on my '18 at 30k. Increasing octane rating to 93 worked up to 58k miles. $50 for a new set of [Autolite Iridium XP5363](https://www.amazon.com/dp/B078KWTCF2?ref=ppx_pop_mob_ap_share) resolved this problem.
Yeah, get rid of those: autolite is junk.
My dad just returned a set of autolites. I installed them and had immediate misfire.
Once we got a good local supplier for Motorcraft plugs a few years ago we almost never install Autolite.
There seems to have been quality issues with those for quite a while. I couldn't count how many times we removed fairly new Autolite spark plugs and replaced them with a better brand to fix a misfire.
I've ran Autolites on my racecar that runs in the 7's for 20+ years with no problem. They are the only thing I trust at the moment
I wouldn’t put autolite plugs even in my lawnmower. NGK or Denso only.
I used them in my 2007 Tacoma with no problems. Left them in for several years.
Do not get Autolite, I've seen them cause trouble and issues in Honda engines.
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