I'm going to keep using NGK's though. The farm-supply store has a whole aisle of them and they're all $1.59 each . I've put them in vehicles where the OE's are Delco, Bosch, Champion, Motorcraft, or Denso and they've all run perfectly with the NGKs.
Out of all the plugs I've tried, standard NGK V-powers are the only ones that have consistently worked well in *everything* I've stuck them in. From single-cylinder lawnmowers to high-winding Japanese 4s to domestic and imported V6s to big-inch V8s. They're worth the extra 40 cents over Champs or Autolites.
When I switched to NGK's it seemed to run better
I just put new plugs in (NGK Iridium IX) and the engine does not shake/miss fire as much as before.
The plug wires do not make a difference. We interchange them all the time here at work (I work at a dealership as well) if need be and there are no adverse effects. All they do is carry the electricity. The plugs on the other hand, that could cause a problem.
i cant comment on the 24v specs, but the OEM 12v plug outperforms everything else i've tried.
I run the BKR7E in all my cars, basically not iridium version of the ones listed here. I prefer copper plugs over iridium or platinum since they are much cheaper.. under 5 bucks for 4. Change them more often then with the others but then you always have fresh plugs.
Just installed some NGK's over the weekend. Definitely idles smoother and quieter. Also feels a bit more responsive to throttle input. Even my wife commented that it felt different and better, which is a miracle. Great $35 mod.
i put in some 3922s and i can hear it misfire when its idling, but it seems fine when im giving it gas.
I put in a set of BP6ES today, gapped to .022", and had every bit the misfiring problems as before, and probably a bit more severe and more frequent.
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