205k kms on original rod bearings! - BMW M5 Forum and M6 Forums
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post #1 of 14 Old 8th April 2019, 08:29 AM Thread Starter
markusaurelius
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205k kms on original rod bearings!

Anyone else with high mileage E60 M5 with original rod bearings?

Curious of your habits!

Here are mine:

I always warm up 1.5-2mins, then
wait till oil temp is fully up before I let rpms rise above 3K. (I do not just go by the” rpm slider “ as there are all other components like tranny, diff, etc.. still cold not just the engine)
I rarely drive it above 5k rpms only when I absolutely want to or have to.
I always shift myself do not leave it in auto. Drive it smoothly.
Oil changes every 5k kms using BMW 10W60

Curious if anyone else has similar experience.

Thanks and cheers to many more trouble free miles.
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post #2 of 14 Old 8th April 2019, 01:58 PM
Beniki
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I'm sitting at 159,000 km on my original rod bearings, with a very clean engine oil analysis result. I too try my best to adhere to not exceeding 3K RPM prior to the oil reaching ~90C, though it does take some patience.
Regarding oil grade, the motor has used 10W60 its whole life though for this 5000km I am trying out 5w50, with the intent to see how it affects engine wear and weathers viscosity degradation (ascertained of course by another oil analysis).
Which country are you from? I find that here in Australia the rod bearing issues are few and far between.



Quote:
Originally Posted by markusaurelius View Post
Anyone else with high mileage E60 M5 with original rod bearings?

Curious of your habits!

Here are mine:

I always warm up 1.5-2mins, then
wait till oil temp is fully up before I let rpms rise above 3K. (I do not just go by the” rpm slider “ as there are all other components like tranny, diff, etc.. still cold not just the engine)
I rarely drive it above 5k rpms only when I absolutely want to or have to.
I always shift myself do not leave it in auto. Drive it smoothly.
Oil changes every 5k kms using BMW 10W60

Curious if anyone else has similar experience.

Thanks and cheers to many more trouble free miles.
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post #3 of 14 Old 8th April 2019, 04:26 PM
Fiftytwoeighty
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I’ve replaced my bearings twice: at 80,000-ish miles and again 60,000-ish miles later.

Links to History and habits are here:
https://www.m5board.com/vbulletin/e6...d-driving.html

History of my oil analysis:
https://www.m5board.com/vbulletin/e6...000-miles.html

~Woody

///M The ///Most Expensive Letter in the Alphabet
Driving Concepts Competition Racing School
s85 + (afterthought) 6mt =158,000 miles with no RCOD and counting ...just saying...

2007 Dinan S2 e60 m5 6MT Interlagos Blue; DINAN 3.91 Exploded @8x,xxx ; Performance Gearing 3.91 LSD 3 clutch, 30/50 ramps, R&P polished ; ClutchMasters FX350 clutch and LTW single mass FW @157,000 miles, RPi Oil Cooler/Scoops; DINAN High Flow Air Mass Meter/Intake, DINAN TBs, DINAN pulley, DINAN strut, DINAN Monoballs, FastAttack Tune, w/Kung Fu grip!, Einhorn Industries Race Jedders, track pipe, and x-pipe; DINAN Section 3, DINAN LTW 19x9 ET18, 19x10 ET25, Michelin PS4S 275/35/19 and 305/30/19, Macht Schnell 15mm spacers (front); FERODO FRP3000H race pads; StopTech BBK 6/4 380mm/35mm x 380mm/32mm w/SS lines; RDSport F/R sways; CKS coils w/swift springs, -2.0/-2.5 F/R camber; z3 1.9L SSK, with f10 shifter; F/R G1W-H; Uniden R1, remote ALP 2Rx:1Tx, F/R NetRadar DSP, w/GPS and BT. SprintBooster v3; Euro MDM and DSC off. Fluids: Motul 7100 4T 10w60, Redline ShockProof Lightweight 75w140, Castrol SRF, Unicorn Jizz and Wolfpack Blood; Rod bearings replaced at 84,000 and 150,000 miles!!!

1988 e28 m5 STROKER 420bhp 91 octane(Paul Burke s38b39); VAC LTW flywheel; MegaSquirt G2 DME; Euro RestoMod track car: caged, 6 point FIA harness, FIA Sabelt GT-160 seats...AC/heater, interior, sunroof, rear seat delete; Euro Headers, dump valve, and race cats; CAE Ultra shifter; custom Ground Control Coilovers/camber plates; Mason Engineering front/rear strut bars; Brembo 6/4 BBK; 17x8 BBS RK w/Dunlop StarSpec II; undergoing Euro restoration, building the e28 CSL ///Motorsport never built. 5.71lbs/hp

1996 FZJ 80; LOCKED; Factory TRD Supercharger; Expo/Overland/Backcountry Rig; custom sleeper/drawer system, full rock armor, 33"s on 2.5" OME Heavy Lift; Rigid LEDs F/R; 231,000 miles and counting.
2008 Audi A3 S-Line Quattro w/flappy paddles (Mammoth Mountain Commuter)
2000 e39 m5 TiAg (Gone, but not forgotten) sold 7/2014.

The Indys that I trust for all my Beasts' needs: oceansidemotorsports.com my local physician for service
fastattackmotorsports.com because JColley!
einhornindustires because WolfPack!

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Last edited by Fiftytwoeighty; 8th April 2019 at 08:42 PM.
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post #4 of 14 Old 8th April 2019, 06:57 PM
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Just had mine done at 101K miles so approximately 161 km.

Now granted I baby my car, 3-3.5k rpm max until until its up to temp and religious oil 5k mile oil changes, but I think someone might have changed the bearings before me. I will beat the piss out of it once its warm and happy though. These cars were made to rev and rev high.

Perhaps bearing wear really does come down to how you treat these cars.

The shop said they look like brand new bearings compared to any other M5 they've done before.

Ignore the red assembly lube.
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07 6 speed E60 M5
12 6 speed E93 M3
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post #5 of 14 Old 9th April 2019, 04:17 AM
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Quote:
Originally Posted by Beniki View Post
I'm sitting at 159,000 km on my original rod bearings, with a very clean engine oil analysis result. I too try my best to adhere to not exceeding 3K RPM prior to the oil reaching ~90C, though it does take some patience.
Regarding oil grade, the motor has used 10W60 its whole life though for this 5000km I am trying out 5w50, with the intent to see how it affects engine wear and weathers viscosity degradation (ascertained of course by another oil analysis).
Which country are you from? I find that here in Australia the rod bearing issues are few and far between.
I did my RB's at 90k. They were well past their use by date. It is notably quiter at idle. Even when warmed. I'm in Aus to but my car is a UK import. That said, other E60 and E63 owners I know through the ///M club have all done theirs too. I did my HP vanos and engine mounts at the same time.

Brgds,
Matt


E60 M5. Silverblue.
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post #6 of 14 Old 9th April 2019, 05:03 AM
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Quote:
Originally Posted by Matthew Cleary View Post
I did my RB's at 90k. They were well past their use by date. It is notably quiter at idle. Even when warmed. I'm in Aus to but my car is a UK import. That said, other E60 and E63 owners I know through the ///M club have all done theirs too. I did my HP vanos and engine mounts at the same time.
Any chance you had an oil analysis done before and after? Which state are you in?

My friend had his RBs done on his E92 M3, and went for some higher clearance ACL bearings, and so far so good. I was keen on doing it, but have chosen to keep an eye on the oil analysis instead, following consultation with a few independents.
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post #7 of 14 Old 9th April 2019, 08:44 PM
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120k miles (193kms), 2008 m6 same habits.
Oil changes every 5k miles (8kms)
Original Bearings
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post #8 of 14 Old 10th April 2019, 12:52 AM
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Quote:
Originally Posted by Beniki View Post
Any chance you had an oil analysis done before and after? Which state are you in?

My friend had his RBs done on his E92 M3, and went for some higher clearance ACL bearings, and so far so good. I was keen on doing it, but have chosen to keep an eye on the oil analysis instead, following consultation with a few independents.
No, didn't bother with oil analysis. Rationale was peace of mind. I bought BE bearings and AP bolts from Jim Colley. Every indie I know that specialises in the S85 (and S65 motor for that matter) recommends the work be done.

Brgds,
Matt


E60 M5. Silverblue.
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post #9 of 14 Old 10th April 2019, 12:59 AM
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Food for thought, there are more than a few M5board members whose engines went with clean Blackstone tests.

Treat oil analysis as a tool, not a guarantee of engine health. Unfortunately doing bearings is really part of the price of entry. You don't want to have the ghost of rod bearing past forever looming over you every time you drive your car. I know I couldn't fully enjoy mine until I had the job done.

07 6 speed E60 M5
12 6 speed E93 M3

Last edited by Slamfire; 10th April 2019 at 12:59 AM. Reason: I can't spell no good
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post #10 of 14 Old 11th April 2019, 04:04 AM
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Quote:
Originally Posted by Slamfire View Post
Food for thought, there are more than a few M5board members whose engines went with clean Blackstone tests.

Treat oil analysis as a tool, not a guarantee of engine health. Unfortunately doing bearings is really part of the price of entry. You don't want to have the ghost of rod bearing past forever looming over you every time you drive your car. I know I couldn't fully enjoy mine until I had the job done.
Food for thought indeed. I would really like to see the list of those cases compiled into a single location, with the mileage and ideally some history of of the vehicles noted. A lack of wear evidence in the oil analysis does not rule out worn bearings, but it does indicate a lack of wear in the tested oil cycle (if that makes sense). jcolley did show some pretty compelling evidence that wear occurs pretty early in the bearings' life cycle, hence his recommendation for higher clearance bearings.

All this makes my head spin...

Last edited by Beniki; 11th April 2019 at 04:07 AM.
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