vs
Spark plug Autolite or Motorcraft
Reviews
In my 206 classes we run this autolite sparkplug because it’s required.
My understanding is that we switched because people were buying plugs in bulk and looking for ones with the lowest internal resistance believing it would effectively advance the engines timing. Supposedly these autolite plugs are much more consistent.
Pros: more consistent
If you care more about performance, or cheaper cost, get the autolite a103, or ar103. Those will give you the best performance, but they only last like 10k. But they’re also dirt cheap.
Pros: best performance, dirt cheap
Cons: short lifespan
Mileage: 10000 km
Part number: A103
I do run Motorcraft plugs because they seem to crack a little less than the Autolites.
Pros: less cracking than Autolites
anecdotally, my truck was at 226k when i changed the plugs. motor craft plugs coated, no anti seize, torqued tighter than advised. probably 20lb ft. 2 rear plugs were originals. i’m now at 235k and nothing wrong yet.
Pros: nothing wrong yet
Mileage: 235000 km
I bought some Autolite double platinum spark plugs because they were on sale at the Napa where I live but everybody I have tried asking to help me do my spark plugs has gawked as soon as I say "Autolite" and tells me that I'll have nothing but issues with those plugs and that "they're only good for Fords" basically.
Cons: potential issues, only good for fords
Vehicle:
Nissan Pathfinder
Also, Autolite is extra terrible. I would have done anything else.
Cons: extra terrible
Local mechanic used an Autolite plug, not Honda-recommended NGK. Misfires stopped for a month, then happened twice more. I have since discovered this brand does not run well in a Honda engine.
Pros: misfires stopped for a month
Cons: misfires returned, does not run well
Vehicle:
Honda Pilot
I changed my plugs to autolite because I had never heard anything bad about them. I replaced them after 3 weeks due to misfires, put another set of autolites in and it ran fine for 2 weeks. Started misfiring again and swapped in a set of NGK's, no problems since.
Pros: ran fine for weeks
Cons: caused misfires
I would never install Autolite on any car, definitely not the WRX.
Cons: never install
Vehicle:
Subaru
Out of all my years replacing spark plugs. The only times I got bad spark plugs that misfired right away is the one time I ordered a fake set thru ebay(my fault for not doing my due diligence) and a set of brand new auto lites from autozone.
Cons: spark plugs misfired
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