Ngk plugs?

[BruceExploder]

I see people say always use.motorcraft/autolite but do ngk plugs work as well I'm just curious I've always used ngk in my vehicles. Searched but couldn't find a consensus.

 

[donalds]

I have read lots of horror stories about using any other than motorcraft/autolite

 

[974X4BLACKSPORT]

The only way to know for sure how NGK plugs would work in your car is to put them in, and try them out. For my 97' with OHV 4.0, I just put in 6 of the Autolite XP 103 Irridium, and it ran way batter then the Bosh Platinum that where put in a couple years ago.

 

[donalds]

I put motorcraft platinum in my wife's truck because that's what the manual calls for

I say why waste your time and money when you can just put in the oem ones cheep insurance

 

[koda2000]

I believe NKG's are a quality plug, but most everyone here uses Motorcraft or Autolite plugs. There are many threads about problems with other brands of spark plugs in Fords (especially Bosch plugs). I don't recall every reading where someone had problem with NKG plugs, but not many have reported trying NKG's. I use Motorcraft or Autolite double platinum plugs in all of my Explorers/Fords. They work very well, so I figure why use another brand and take a chance?

Note: Due to Ford's "wasted-spark" ignition system I find the plugs on the driver's side wear down much worse than the passenger side, If you develop a miss near the end of the recommended service life of the plugs, it will probably be the plugs on the driver's side causing the problem. For this reason I change the driver's side plugs at around 50K-70K rather than waiting for the miss to happen at an inopportune time. The last time I had an issue ("misfires on multiple cylinders") was on my daughter's '00 Mountaineer 5.0L. At 80K the driver's side plug gaps were so large I couldn't measure them, while the passenger side plugs were maybe at .060 (originally gaped to .054) after 80,000 miles, which is a negligible amount of wear and would have easily made it to the recommended 100K change interval. I've seen a similar amount of uneven plug wear on SOHC V6's.

 

[J_C]

I put NGK fine wire platinum in my '98 SOHC, runs fine and starts fast. This was ~4 years ago but as far as miles driven on them, not many yet, single-digit thousands miles.

I was due for plugs based on mileage on the factory plugs, and # years on the wires, but also had a slight misfire when cold if it was damp/rainy weather, for about the first 20-30 seconds running.

I also wasn't driving it much, mostly very short trips so a partially drained battery could have contributed, but keeping same battery and only swapping the plugs and wires at the same time made the misfires go away.