Hello,

Please don't beat me for this. I was on Amazon and they have these for about $6 and some change.

Has anyone tried them?

NGK BKR5EIX-11 Iridium IX Spark Plug

Thanks.

 

I have not tried them, but I've heard guys on here saying they do run the NGK iridiums because you dont have to change them as often (I will be running NGK iridiums next tune up). That is nice since you have to take off the intake mani to change the rears.

 

I remember I swapped mines out without having to remove the upper intake. I just used flexible extensions and voila. True story. I was thinking of swapping mines out since I have the smog inspection coming up. It never ends :'(

 

Hard to believe you can remove the coil pack without the IM coming off........I call your bluff

 

I remember correctly because I had swapped out the spark plugs before I discovered it was the coil on wire thing that was the issue.

Who knows, maybe I am a magician. Ill give a try next weekend when I swap out the plugs again

Then I'll show you who's boss.

 

3.0 or 3.5?

 

Sounds really magical partna.

 

It is a 3-POINT-SLOW

 

OK so I must recant my statement of calling your bluff. I don't know Shyt about the 3.0 and the plug changing.

 

Yay!!!

 

You can change plugs on the 3.0 without removing much of anything, just a couple of brackets in the way and moving the throttle cable. That is, if you have the right tools/extensions. On the 35 though it's way harder and you need to remove the IM.

I'm currently running the NGK Iridium IX plugs and I think they're great. There is definitely a slight difference in performance with these (gas mileage) and my car start-ups are quick and beautiful. But the difference is, they're performance plugs so they will require MORE FREQUENT changes compared to platinum/laser iridium.

You are thinking of laser iridium with the less frequent changing, those give you longer life and pretty much the same performance as platinum. I'm using laser iridium in my M3. But those are like $12 a pop. I chose to run the Iridium IX in the Maxima because of the way the ignition system is designed, it's real sensitive and I'd rather change plugs more often at $6 a pop it's not expensive.

The Iridium IX is designed for 30-50k miles IIRC (from the NGK website), whereas the platinum last 100k and laser iridium can be even more. And also I believe the Iridium IX usually last about 25-30k in the real world despite what the website says.

Hope that helps

 

I saw the title and I thought I'd start here, instead of a new thread.

I have a 96 VQ30, it only has 65,000mi on it, but I decided to do a quick plug change. I wound up getting the Iridium IX, BKR5EIX-11 to throw in there, as they were cheaper than the platinum and my thought process was Iridium > Platinum.

Checked the gap on all the plugs for .044" and installed them. Since the plug change, the car now randomly misfires at idle. Fine throughout the rev range and the car feels just as good as ever, but as soon as I get to a red light, the car will misfire and the RPMs will drop because of the misfires. Rechecked the plugs, they all look great, they were all still torqued down properly. Still doing it, I'm probably going to go out, spend another $60 on some laser platinums.

Has anyone heard of this issue with the IX plugs? I was thinking maybe they're too cold, considered this car is just a light DD, but same factory heat range as previous.

 

The iridium plugs last longer because it is a harder metal. And because it is a harder metal, it does not conduct electricity as well. So the coil has to work harder to make the spark happen.

Normally, changing to iridium plugs shouldn't make any difference. But if the car is developing weak coil packs (and after 17 years, it is a good possibility), iridium plugs could make it more apparent. Since I can't be 100% sure of this being true, try a set of standard plugs.

If you want to experiment and go to the opposite end, get a set of copper plugs. They will give you the fattest, most powerful spark your ignition system can produce, but they will be worn out in about 10K miles.

 

I have them in my 02 and they work great.

 

I have iridium lasers in my 03, and they function just fine.

 

Thanks. For the longest time, I was using the V-power (copper) plugs in my SR20 and my VQ35. I change the plugs out every few oil changes because I know they don't last as long, but I've always considered the coppers to have the best performance.

As far as this issue goes, I didn't wait for the .org to answer, I went back to Advance Auto and asked if they would exchange the IX Iridiums for the Laser Platinums. They honored my request and I just paid the difference. No more misfires, the car runs like new, again.

I'm assuming that the coil packs and possibly the AC compressor will be coming up within the next couple of years, just an assumption, but I can never really predict what's going to hit next on an 18 year old car, I also just changed out the water pump.