NGK 5992 discontinued and replaced by 95770...but last two sets only lasted a few k?

paradoxical3 · 07-16-2015, 10:36 PM

I was successfully using NGK 5992 gapped to .023 for a long time. NGK discontinued the plug and replaced it with NGK 95770, which is supposed to be the same/similar.

I am beginning to think this is not the case. The first set of the new 95770 I tried only lasted 9k before causing severe misfires (undriveable) and when I took them out, they were covered in carbon. Normally the 5992s were a bit white from running lean.

I replaced them with another set of 95770 and now I just got the same part throttle misfire after only 4k that the old ones had. If this gets worse again, I will pull the plugs but I suspect they are finished.

Does anyone know if these are truly the same plug as the 5992 or are they different? I may have other issues going on (coils, etc) so it is hard for me to be sure.

Thanks,

-Jon

PeterPure · 07-17-2015, 02:39 AM

Quote:

Originally Posted by paradoxical3

I was successfully using NGK 5992 gapped to .023 for a long time. NGK discontinued the plug and replaced it with NGK 95770, which is supposed to be the same/similar.

I am beginning to think this is not the case. The first set of the new 95770 I tried only lasted 9k before causing severe misfires (undriveable) and when I took them out, they were covered in carbon. Normally the 5992s were a bit white from running lean.

I replaced them with another set of 95770 and now I just got the same part throttle misfire after only 4k that the old ones had. If this gets worse again, I will pull the plugs but I suspect they are finished.

Does anyone know if these are truly the same plug as the 5992 or are they different? I may have other issues going on (coils, etc) so it is hard for me to be sure.

Thanks,

-Jon

Sucks to hear. I just installed 5992 ngks this week. My dealer still has stock

Mike@N54Tuning.com · 07-17-2015, 08:02 AM

I was under the impression they were the same and they just changed the catalog number. Can look into it for you.

Mike

Mike@N54Tuning.com · 07-17-2015, 09:53 AM

Confirmed same plug.

Mike

paradoxical3 · 07-17-2015, 11:27 PM

Thanks Mike, I appreciate it.

FSociety · 12-10-2015, 09:14 PM

Why not upgrade to S55 plugs? .020 gap =D

Julian2485 · 12-29-2015, 08:25 PM

Quote:

Originally Posted by ROBNYC

Why not upgrade to S55 plugs? .020 gap =D

What is the part number and brand Bmw uses for s55 Bosch or ngk ?

Julian2485 · 12-29-2015, 08:26 PM

What is the proper gap for ngk 95770 plugs I heard it should be .50 is that correct ?

JETmn · 12-30-2015, 07:52 AM

Quote:

Originally Posted by Julian2485

What is the proper gap for ngk 95770 plugs I heard it should be .50 is that correct ?

A 1/2 inch gap probably isn't going to work well

Most go around .023" depending on how much boost you are running.

Julian2485 · 12-30-2015, 03:04 PM

Quote:

Originally Posted by JETmn

Quote:

Originally Posted by Julian2485

What is the proper gap for ngk 95770 plugs I heard it should be .50 is that correct ?

A 1/2 inch gap probably isn't going to work well

Most go around .023" depending on how much boost you are running.

Thanks

kamfa39 · 12-30-2015, 05:03 PM

Same thing happened to me 2 sets less than 5k on both. I went back to OEM. Still having misfire issues. Complete loss for words

stari335 · 01-04-2016, 08:43 PM

Ngk 5992 are same heat range as oem n55 plugs. They are used on the n54. PTF posted about this a while back. On the N55 people should be ising N20 plugs as they are 1 step colder than N55. They are 2 steps colder than N54 plugs.

FSociety · 01-04-2016, 09:30 PM

Quote:

Originally Posted by stari335

Ngk 5992 are same heat range as oem n55 plugs. They are used on the n54. PTF posted about this a while back. On the N55 people should be ising N20 plugs as they are 1 step colder than N55. They are 2 steps colder than N54 plugs.

Got a link to this ?
The N20 plugs (NGK) are hot and most folks now running a tune on N20 cars are using S55 (bosch) plugs with -.018-.022 gap

Julian2485 · 01-04-2016, 09:57 PM

Quote:

Originally Posted by ROBNYC

Quote:

Originally Posted by stari335

Ngk 5992 are same heat range as oem n55 plugs. They are used on the n54. PTF posted about this a while back. On the N55 people should be ising N20 plugs as they are 1 step colder than N55. They are 2 steps colder than N54 plugs.

Got a link to this ?
The N20 plugs (NGK) are hot and most folks now running a tune on N20 cars are using S55 (bosch) plugs with -.018-.022 gap

So it's safe to run s55 plugs safely on n54 and are they a step colder? If so that's good to know , now we just need to be able to retrofit the s55 hpfp for n54

KROOKEDking420 · 09-08-2017, 01:27 PM

I have a stock e92 n54 will the NGK 95770 work with no misfires or will I continue misfire issues because of them?? thanks in advance ppl

Julian2485 · 09-08-2017, 02:31 PM

Quote:

Originally Posted by KROOKEDking420

I have a stock e92 n54 will the NGK 95770 work with no misfires or will I continue misfire issues because of them?? thanks in advance ppl

Have you changed your coils ?

KROOKEDking420 · 09-08-2017, 04:08 PM

I had to replace a cracked valve cover cuz of a oil leak into 2 spark plug tubes causing a misfire then I replaced 2 of the plugs(ngk95770) and still got misfires then I replaced all of the 6 coils(bosch) and still got misfires so now im replacing all 6 plugs(ngk95770) again ......... ive been readin that the gap-able plugs could be causing it even if their gapped at .022 so im bout to gap the new ones now and I wana know if im doin something wrong or what anyone have any insights??

Julian2485 · 09-08-2017, 05:33 PM

Quote:

Originally Posted by KROOKEDking420

I had to replace a cracked valve cover cuz of a oil leak into 2 spark plug tubes causing a misfire then I replaced 2 of the plugs(ngk95770) and still got misfires then I replaced all of the 6 coils(bosch) and still got misfires so now im replacing all 6 plugs(ngk95770) again ......... ive been readin that the gap-able plugs could be causing it even if their gapped at .022 so im bout to gap the new ones now and I wana know if im doin something wrong or what anyone have any insights??

Did you clean out the oil out of the spark plug well and maybe your gapping them wrong

07-16-2015, 10:36 PM	#1
paradoxical3 Lieutenant Colonel 1008 Rep 1,563 Posts Drives: BMW Join Date: Mar 2012 Location: USA iTrader: (6)	NGK 5992 discontinued and replaced by 95770...but last two sets only lasted a few k? I was successfully using NGK 5992 gapped to .023 for a long time. NGK discontinued the plug and replaced it with NGK 95770, which is supposed to be the same/similar. I am beginning to think this is not the case. The first set of the new 95770 I tried only lasted 9k before causing severe misfires (undriveable) and when I took them out, they were covered in carbon. Normally the 5992s were a bit white from running lean. I replaced them with another set of 95770 and now I just got the same part throttle misfire after only 4k that the old ones had. If this gets worse again, I will pull the plugs but I suspect they are finished. Does anyone know if these are truly the same plug as the 5992 or are they different? I may have other issues going on (coils, etc) so it is hard for me to be sure. Thanks, -Jon
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07-17-2015, 08:02 AM	#3
Mike@N54Tuning.com Joint Chiefs of Staff 4912 Rep 115,980 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	I was under the impression they were the same and they just changed the catalog number. Can look into it for you. Mike
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07-17-2015, 09:53 AM	#4
Mike@N54Tuning.com Joint Chiefs of Staff 4912 Rep 115,980 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	Confirmed same plug. Mike
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07-17-2015, 11:27 PM	#5
paradoxical3 Lieutenant Colonel 1008 Rep 1,563 Posts Drives: BMW Join Date: Mar 2012 Location: USA iTrader: (6)	Thanks Mike, I appreciate it.
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12-10-2015, 09:14 PM	#6
FSociety IG @bmwF9xG80 3813 Rep 7,593 Posts Drives: G80 M3, X4M, G07 X7m50 Join Date: Apr 2012 Location: NYC to NJ to Orlando FL iTrader: (3) Garage List 2023 BMW G80 M3 [0.00] 2020 BMW X4MC [0.00] 16' BMW X4 M40i [10.00] 06 Cadillac STS [0.00]	Why not upgrade to S55 plugs? .020 gap =D __________________ 60-130mph 6.5s X4M #HCP 60-130mph 5.0s G80 M3 #OrlandoAutowerks Sauce IG: @bmwF9XG80
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12-29-2015, 08:26 PM	#8
Julian2485 Major 110 Rep 1,340 Posts Drives: Black lci e90 335 xdrive Join Date: Sep 2013 Location: New york iTrader: (1)	What is the proper gap for ngk 95770 plugs I heard it should be .50 is that correct ?
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12-30-2015, 05:03 PM	#11
kamfa39 Private First Class 18 Rep 114 Posts Drives: 2011 335xi Black Sapphire Join Date: Nov 2013 Location: Jersey shore iTrader: (0)	Same thing happened to me 2 sets less than 5k on both. I went back to OEM. Still having misfire issues. Complete loss for words
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01-04-2016, 08:43 PM	#12
stari335 Private 13 Rep 87 Posts Drives: E92 335i Join Date: Sep 2015 Location: Malton iTrader: (0)	Ngk 5992 are same heat range as oem n55 plugs. They are used on the n54. PTF posted about this a while back. On the N55 people should be ising N20 plugs as they are 1 step colder than N55. They are 2 steps colder than N54 plugs.
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09-08-2017, 01:27 PM	#15
KROOKEDking420 Private 11 Rep 86 Posts Drives: 2007 e92 coupe Join Date: May 2014 Location: BOSTON iTrader: (0)	ngk spark plug question?? I have a stock e92 n54 will the NGK 95770 work with no misfires or will I continue misfire issues because of them?? thanks in advance ppl
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09-08-2017, 04:08 PM	#17
KROOKEDking420 Private 11 Rep 86 Posts Drives: 2007 e92 coupe Join Date: May 2014 Location: BOSTON iTrader: (0)	I had to replace a cracked valve cover cuz of a oil leak into 2 spark plug tubes causing a misfire then I replaced 2 of the plugs(ngk95770) and still got misfires then I replaced all of the 6 coils(bosch) and still got misfires so now im replacing all 6 plugs(ngk95770) again ......... ive been readin that the gap-able plugs could be causing it even if their gapped at .022 so im bout to gap the new ones now and I wana know if im doin something wrong or what anyone have any insights??
	Appreciate 0 Quote