Try out the new beta site for M3Post. You can read more about what's happening here
BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Today's Posts

Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
 
BPM
Post Reply
 
Thread Tools
      09-27-2020, 02:38 PM   #1
VictorH
Major
464
Rep
1,288
Posts

Drives: '09 M3
Join Date: Dec 2007
Location: SC

iTrader: (4)

NGK-Ruthenium HX Plugs- Anyone have this?

I just changed my plugs on my car due to slightly longer crank and start. I had 30,000 miles on the OEM-type NGK plugs. Switched to NGK Ruthenium HX plugs (LKR8BHX-S). Only change are the plugs and now the car runs fine for 20 minutes then I get 2B37, 2B38 etc which is misfire, DME cylinder cut-off on every single cylinder 1-8 and of course it hardly runs, can't barely go 40 mph max. Clear codes and it's good for a couple of minutes then same thing again.

Anyone try these new "improved" plugs? They are rated for S65, same 5,000 ohm rating but it's odd that it's such a mess for me. I checked my ground to block wire and added some conducting grease (it was okay), my coils are old, all have 154,000 miles but I've had no trouble and what are the odds that suddenly every single one is bad.

Anyway, I guess I'm going to try the regular OEM plugs again, but wondering if anyone has experienced this and if not perhaps these plugs are not an "upgrade" for our motors.
Appreciate 0
      09-27-2020, 02:54 PM   #2
tdott
S.FL S65 Specialist
4545
Rep
4,341
Posts

Drives: M3
Join Date: Nov 2010
Location: South FL / 6ix

iTrader: (4)

I see no reason to stray from OEM plugs.

Many others are available saying they work with s65, but I've only heard issues with them, never any success stories.
Appreciate 4
Dpc2u11313.50
Scharbag2794.50
DrFerry10035.50
      09-27-2020, 03:16 PM   #3
Dpc2u
Major
Dpc2u's Avatar
No_Country
11314
Rep
1,065
Posts

Drives: E93 M3, E60 M5, F15 X5, E46
Join Date: Feb 2019
Location: Middle Tennessee

iTrader: (0)

Quote:
Originally Posted by tdott View Post
I see no reason to stray from OEM plugs.

Many others are available saying they work with s65, but I've only heard issues with them, never any success stories.
+1

I have not heard of anyone having good results with them in an s65, just horror stories.
__________________
E46, E60 M5, E93 M3, F15 X5

IG - @thebimmerhaus
Appreciate 0
      09-27-2020, 03:25 PM   #4
pbonsalb
Lieutenant General
7679
Rep
13,759
Posts

Drives: 18 F90 M5, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: New England

iTrader: (4)

A few tried them, all with bad experiences.
Appreciate 0
      09-27-2020, 05:46 PM   #5
VictorH
Major
464
Rep
1,288
Posts

Drives: '09 M3
Join Date: Dec 2007
Location: SC

iTrader: (4)

That figures. Live and learn. When I torqued up the last spark plug yesterday, I thought, "that's the last time I have to change the plugs" since I'm planning to sell my M3 next spring. Well, evidently, not quite yet, one more change to go.
Appreciate everyone's input.
Appreciate 0
      10-03-2020, 12:29 PM   #6
VictorH
Major
464
Rep
1,288
Posts

Drives: '09 M3
Join Date: Dec 2007
Location: SC

iTrader: (4)

Confirmed!!
The "fancy" NGK plugs are rubbish. Sent them back to suppler, installed the stock NGK plugs, went for long test-drive and all is good. For anyone else tempted to try these new "improved" plugs, stay away!
Appreciate 3
Dpc2u11313.50
tdott4545.00
tlrid3r555.00
      10-08-2020, 12:51 AM   #7
tlrid3r
just another M3
tlrid3r's Avatar
United_States
555
Rep
1,174
Posts

Drives: e92 M3
Join Date: Dec 2007
Location: San Jose, ca

iTrader: (6)

I tried it. Car misfired all cylinders. I shared details here along with many others all failed as well:

ngk *lkr9bhx-s/NGK 90465 ? https://www.m3post.com/forums/showthread.php?t=1591014

Oem ngk is still the best
__________________
///M3... Don't want more power, Just want it to turn sharper one step closer each time. -Ohlins TTX Raceline, PolePostions seats, Akrapovic EVO, ARC-8, 1/2 Cage, Seat Delete, Stoptech BBK, solid Subframe and diff bushing, spherical bearing on everything.
Appreciate 0
      09-26-2024, 01:24 PM   #8
james11109
Registered
3
Rep
4
Posts

Drives: BMW 328ix
Join Date: Sep 2024
Location: Toronto, Canada

iTrader: (0)

I installed 6 NGK 94122 LFR6AHX-S Ruthenium HX spark plugs in my E90

I installed 6 NGK 94122 LFR6AHX-S Ruthenium HX spark plugs in my E90, after two weeks, it still running very well without any error code.
Appreciate 0
      09-26-2024, 01:39 PM   #9
spammysammich
Lieutenant Colonel
spammysammich's Avatar
United_States
3073
Rep
1,799
Posts

Drives: 2009 E92 M3 Dakar Yellow II
Join Date: Oct 2021
Location: Edmonds, WA

iTrader: (0)

Garage List
2009 BMW M3  [10.00]
Quote:
Originally Posted by james11109 View Post
I installed 6 NGK 94122 LFR6AHX-S Ruthenium HX spark plugs in my E90, after two weeks, it still running very well without any error code.
Do you have an M3? If not your results are not applicable to this forum.
Appreciate 4
DrFerry10035.50
CamasM3e934798.50
      09-26-2024, 02:47 PM   #10
tdott
S.FL S65 Specialist
4545
Rep
4,341
Posts

Drives: M3
Join Date: Nov 2010
Location: South FL / 6ix

iTrader: (4)

looks like a 328i spammer
Appreciate 2
      09-26-2024, 05:36 PM   #11
smokinjoe64
Tailhooker
smokinjoe64's Avatar
4056
Rep
1,680
Posts

Drives: e92 M3 6MT
Join Date: Nov 2008
Location: OC SoCal

iTrader: (1)

Garage List
2012 BMW M3  [9.75]
2025 Mazda MX-5  [0.00]
2003 BMW M5  [0.00]
2024 Ranger Raptor  [0.00]
Quote:
Originally Posted by tdott View Post
looks like a 328i spammer
+1
__________________
e92 M3 - Interlagos Blue | Recaro GTs w/Fox Red Extended |Carbon Leather
BPM Stage II; SuperSprint: header-back, catless, nonresonated, F1s; Infinity Design CF intake; Partee Racing CF plenum; do88 coolers; Bilstein B16 kit w/EDC, monoball links; Brembo BBK; AutoSolutions SSK

Appreciate 0
Post Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 08:47 PM.




m3post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2026, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST