Spark plug condition

Alrock31 · 12-17-2022, 06:58 PM

So I took some time today to change my OE plugs and install a fresh new set.i didn’t have any misfire issue.They have about 30k miles on them with a dinan stage 1. What do you guys think on the condition of these?

M5Rick · 12-18-2022, 10:36 AM

About the same as mine when they were pulled at 40k for the first time with that light grey color except mine had reached the end of the road by going into 'drive moderately' mode when pushed.

Blaxwil · 12-19-2022, 07:34 AM

How about this for being lazy. 40K miles before changing mine. Some of the electrodes are deformed but the real issue is how the oil has seeped through on the back cylinders. I also suffered some reduction in performance. Won’t go 40k again. 20K max intervals for me going forward.

Blaxwil · 12-19-2022, 07:38 AM

Looking at yours, you look good. Very clean and dry. Your electrodes are in good shape and your gaps seem to be consistent unlike mine.

Alrock31 · 12-19-2022, 08:56 AM

Quote:

Originally Posted by Blaxwil

How about this for being lazy. 40K miles before changing mine. Some of the electrodes are deformed but the real issue is how the oil has seeped through on the back cylinders. I also suffered some reduction in performance. Won’t go 40k again. 20K max intervals for me going forward.

Where is that oil from? did you fix it? I had one plug look wet on #7

Blaxwil · 12-19-2022, 09:23 AM

Probably a leaky head gasket or valve stem.

SpeedProtocol · 12-27-2022, 05:30 PM

they look about right

12-17-2022, 06:58 PM	#1
Alrock31 Captain 346 Rep 653 Posts Drives: 2014 Bmw M5 Join Date: Sep 2015 Location: NYC iTrader: (3)	Spark plug condition So I took some time today to change my OE plugs and install a fresh new set.i didn’t have any misfire issue.They have about 30k miles on them with a dinan stage 1. What do you guys think on the condition of these? Attached Images
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12-18-2022, 10:36 AM	#2
M5Rick General 60070 Rep 19,548 Posts Drives: M5 F10 DCT Gunmetal Join Date: Aug 2018 Location: Southern England iTrader: (0)	About the same as mine when they were pulled at 40k for the first time with that light grey color except mine had reached the end of the road by going into 'drive moderately' mode when pushed.
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12-19-2022, 07:34 AM	#3
Blaxwil Captain 627 Rep 648 Posts Drives: 2015 M5 Join Date: Feb 2018 Location: Atlanta iTrader: (0)	How about this for being lazy. 40K miles before changing mine. Some of the electrodes are deformed but the real issue is how the oil has seeped through on the back cylinders. I also suffered some reduction in performance. Won’t go 40k again. 20K max intervals for me going forward. Attached Images
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12-19-2022, 07:38 AM	#4
Blaxwil Captain 627 Rep 648 Posts Drives: 2015 M5 Join Date: Feb 2018 Location: Atlanta iTrader: (0)	Looking at yours, you look good. Very clean and dry. Your electrodes are in good shape and your gaps seem to be consistent unlike mine.
	Appreciate 1 Alrock31346.00 Quote

12-19-2022, 09:23 AM	#6
Blaxwil Captain 627 Rep 648 Posts Drives: 2015 M5 Join Date: Feb 2018 Location: Atlanta iTrader: (0)	Probably a leaky head gasket or valve stem.
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12-27-2022, 05:30 PM	#7
SpeedProtocol First Lieutenant 378 Rep 319 Posts Drives: '14 F10 M5 - '21 F90 M5 Join Date: Feb 2020 Location: Fort Worth Texas iTrader: (1)	they look about right __________________ --------------------------- -=SpeedProtocol=- 2014 M5 Sakhir Orange- BPM Stage 1 - Soul Performance Exhaust - PG Intakes - CarboTech 1521 Pads - Turner Monoballs 2021 M5 Motegi Red- Stock
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