Since spark plugs don’t cost that much I played around with a few. My 05 TJ like the Autolite APP985 the best. Hated the NGK ZF5RN the most.
Cylinder Misfires started on #2, progressed to all, replaced all spark plugs and all spark plug wires. Cylinder misfires now gone. Spark plugs and spark plug wires all in bad condition
About 6 weeks ago I finally changed the spark plugs. So I put somewhere near 180,000 miles on a set of Autolite spark plugs. Two of the spark plugs the center electrode was completely gone. I don't know how the fuck the engine ran and I certainly don't know how it did not throw a code , it still ran very smoothly even at idle.
I've used Autolite plugs in the 2.0's I've owned for over 20 years now because I think they work the best of the ones I've tried with this engine.
Just replaced all my spark plugs that were in for 83k miles. Autolites were in and replaced with Denso twin-tip.
If you need new spark plugs... Don't use Autolite.
Autolite plugs are junk. You’re better off leaving those 200k OEM plugs in it.
Throw those autolite plugs in the garbage where they belong
Yea,get some ngk’s or denso,autolite plugs are garbage.
The plugs it had in it (autolite) didnt look great.
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