434 votes
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.
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.
Most Asian brands are pretty picky about spark plugs. You put Autolites in a 70s malaise-era Ford - not in a modern, sophisticated, computer controlled, turbocharged Honda.
Autolite are garbage plugs. Get denso or ngk plugs and gap them accordingly before installation. You can see signs of blow-by at the porcelain.
I agree with everyone saying NGK but I would also like to recommend you do not buy an autolite if you need a substitute, they have horrible quality control.
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
Probably going to need to pull them again within a couple years. Autolites are the absolute worst sparkplugs.
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The brand is registered in USA. Official website: https://www.autolite.com/.
In March 2026, PartReview users have a mixed opinion of Autolite spark plug.
PR Score — 41 out of 100, based on 140 reviews and 434 votes. 51 positive review, 14 neutral reviews, 75 negative reviews. Average rating — 2.5 (out of 5). Vote balance: 181 up, 253 down.
In the ranking of the best spark plug this part is at position 17, behind Champion and OEM FORD , but ahead of OEM Porsche and OEM Nissan.
Users also evaluated the qualities of Autolite spark plug:
See which car brands and models owners choose Autolite spark plug for. Below are car-specific ratings where this part is in the Top-3:
There are 16 comparisons of Autolite spark plug with other manufacturers on PartReview.
In particular, see which spark plug are better: Autolite or OEM Mazda, Autolite or OEM Honda, Autolite or OEM Audi, Autolite or OEM Subaru, Autolite or OEM BMW .
