vs
Spark plug Autolite or Motorcraft
Reviews
I use Autolite plugs plat 1 cheepos that get me 400 miles per tank and seem to handle continuous high rpm output ( drove across the US in four days)
Pros: good fuel economy, handles high RPM
Vehicle:
Volkswagen Jetta
Now I'm running autolites one range colder than stock at .028 and they run great...
Pros: run great
Last time I tried the 3922s and I was pleasently surprised with how smooth the car runs. I haven't had a misfire code since I changed over.
Pros: smooth car runs
Cons: no misfire code
Vehicle:
Volkswagen
Also I'm using the 3922's and love them. They went a long way in solving my timing pull probs w/ my ATP Stg3.
Pros: solving timing pull probs
Part number: 3922
i put in some 3922s and i can hear it misfire when its idling, but it seems fine when im giving it gas.
Pros: fine when accelerating
Cons: misfire at idle
Part number: 3922
Throw them away, they're shit plugs. Autolite just didn't crack the code for making quality iridium plugs at a super cheap price. I wouldn't even put these in my lawn mower.
Cons: shit plugs, low quality
Don't buy Autolite spark plugs. They suck. I had 2 out of 4 in a pack that were faulty and failed within days of installing them.
Cons: faulty, failed quickly
Vehicle:
Ford Mustang
When we got our 535xi one of the first things I did was visit the local parts place to buy new spark plugs for the N54. After driving the car a while and visiting many BMW discussion boards I learned most folks have a very low opinion of them
Cons: low opinion
Vehicle:
BMW
Autolite made the only plug I've ever had that was dead when brand new.
Cons: dead when brand new
I did the plug change for the first time on my Tig. Pretty easy and took maybe 30 minutes. tricky part was getting the wire harness/clips to release from coil packs. Just be patient and use a small screwdriver. FWiW, I used Autolite Iridium plugs cuz my local NAPA dealer was out of the NGK's and recommended these. The quality was really bad on my set.. The cathode (curved portion of the plug) was significantly off axis, misaligned. One plug was bad enough that I returned it for an exchange. These plugs get high reviews on Amazon, so I kept them in without any problem but will be going back to the OEM NGK's next time. My old plugs looked very good for 45K miles.
Pros: easy plug change
Cons: bad quality, misaligned cathode
Vehicle:
Volkswagen Tiguan
Mileage: 72420 km
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