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.
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 used them in my 2007 Tacoma with no problems. Left them in for several years.
after changing the spark plug for another autolite it stopped misfiring its still a little rough so I fear it may comeback so I just ordered some NGK plugs.
If you used auto lite spark plugs that is almost certain the problem.
autolites are some of the worst spark plugs, grab some NGK iridium’s and it should be fine
I have a 2019 GTI with 65k km. I decided to do plugs and when I saw how expensive OEM were, I said screw that, i'm going to try the iridium auto value basic ones. I thought the difference in quality would be negligible. I ran the Autolite XP5325 plugs without gapping. All seemed fine but then when pulling on to highway under load at 3k + RPM, misfiring like crazy.
I was given an "offer" to have my spark plugs changed for $368!
it was the Autolite spark plugs. Had car towed to my mechanic. They replaced with spec NGK and the car is running fine.
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