I've been running autolite in pretty much every domestic that comes through my shop for years since they’re usually the workhorse for Ford and GM tunes. Also, I haven’t seen any dip in the plug quality lately so that's a good sign. The iridiums are still pulling clean gaps right out of the box.
I have a 3.5 ecoboost. All 6 of my Ford plugs failed because of cracks. I replaced them with AutoLite iridium XP5863. They are all still going strong after over 50k miles.\n\nThe Ford plugs failed with a cylinder misfire error code. The engine would also bog down under havy accelaration
Replaced by Autolite. Has rain sensor. That was no problem, but it did cost extra.
Bought two auto light from autozone to fix a quick misfire. Used it for two years then took it out and saved it. Quick changed two with the auto light I had previously saved. And bought another one at autozone. 2 years later still running good. Gotten lazy to changed them out. But still running good in my 08.
It\u2019s true that you dont\u2019 get quite as good performance as with the Bosch, but this is my second set of autolites and I\u2018m over 200k miles already.
Just replaced all my spark plugs that were in for 83k miles. Autolites were in and replaced with Denso twin-tip.
Dont use autolite garbage, this isnt uncommon with cheap plugs. Get NGK Iridums
Pulled the spark plugs and #3 has burnt away the centre electrode. Plugs aren't all that old. Plug brand is Auto lite. Any ideas on what may be the cause?
A quick search shows that autolite spark plugs don't seem to perform well in modern vehicles, you might have to go for a higher quality closer to OEM quality plugs.
Homie, do not run Autolite plugs.
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The Autolite brand is registered in USA. Official website: https://www.autolite.com/ .
In March 2026, PartReview recorded 144 reviews across 3 parts by Autolite. Average rating — 2.9 out of 5.
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