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.
It doesn't look eroded. It looks like the centre electrode tip has fallen off. That shouldn't happen. I usually only use Bosch or NGK plugs. I've never heard of Auto lite...
August 28 2024 : Spark plug change Bosch 70,588
I run more or less the same motor (2.1liter-276 Schrick-10.5CR), and I'm using stock Bosch spark plugs.
Changed valve cover/gasket and installed new Bosch plugs and NGK boots.
Car had slightly higher rpms at cold startup but didn\u2019t think anything was wrong. After a few days engine started to misfire. I did some research and it sounded like I should use OEM plugs. I purchased Nissan plugs from the dealer and replaced the Bosch plugs. Misfire went away, but higher rpms at cold start persisted.
Yes. However as a long time old car mechanic I learned the hard way some new cars are super picky about what spark plugs you put in them. It kind of caught me by surprise. Parts store gave me Bosch plugs their system matched to my GF's Pilot, and it fell on its face hard about a half hour into the next drive.
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?
I have a 21 xlt 4wd 2.7 and I do A LOT of driving for work. Recently crossed 80k miles and it started misfiring like crazy shortly after that and threw a code. Pulled the plugs and they were definitely fouled. I did some reading and saw most people change the plugs out around this interval so I went ahead and did it. EVERY auto part store near me only had 1 or 2 oem plugs and I couldn\u2019t really wait so I went ahead and got BOSCH iridium plugs. Well I\u2019m noticing when I get on it or go to speed up at higher RPMs/gears, I\u2019m getting what feels like stuttering or very minor misfires every now but it\u2019s not throwing any codes.
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.
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If choosing spark plug across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.
We compare spark plug across these categories:
In March 2026 on PartReview, spark plug Bosch were overall better than Autolite.
In March 2026 on PartReview, spark plug Bosch were overall more popular than Autolite.
By vote balance, spark plug Bosch surpassed Autolite:
By number of reviews, spark plug Bosch surpassed Autolite:
In March 2026, according to PartReview, spark plug Bosch led more car-specific ratings than Autolite:
Bosch are chosen by owners of cars such as: Nissan Altima, Audi S4, Ford Ranger, Volkswagen Beetle, Volkswagen Corrado, and others.
Spark plug Autolite have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of spark plug Bosch with: NGK, Denso, Champion, AC DELCO, BRISK, OEM Volkswagen, OEM Toyota, Motorcraft, OEM FORD, OEM BMW.
Also available: comparisons of spark plug Autolite with: NGK, Denso, Champion, AC DELCO, BRISK, OEM Volkswagen, OEM Toyota, Motorcraft, OEM FORD, OEM BMW.
You can also see who is better among other spark plug manufacturers: Bosch or NGK, NGK or Denso, NGK or Autolite, NGK or Champion, NGK or AC DELCO.
