What BMW has to say on the subject of OIL! - Page 38 - BMW M5 Forum and M6 Forums

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What BMW has to say on the subject of OIL! What BMW has to say on the subject of OIL!
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Old 20th August 2010, 14:27   #371
Ron Stopfer
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Actually, most would recommend changing synthetic oil at least once a year regardless of the number of miles driven...even BMWs pathetic "free maintenance" allows one oil change per year regardless of miles or status of service lights.
"Free Maintenance", indeed. I've had plenty of BMW service managers that stuck to the policy line of once a year. On the other hand, if you're willing to pay for it out of your pocket, or if you don't have "Free Maintenance", then they highly recommend 3/3,000.
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Old 21st August 2010, 17:20   #372
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My .02 worth.....use manufacturer recommendation. Whether you drive a Model T, a Z71, a 911 Carrera, a Ford pickup, or an M5. The BMW company, while not perfect, still knows more than most of will ever know (that'll hurt some feelings with the testosterone and such). I just drive my '00 E39 M5 like any regular guy here in the US, and I follow OEM recommendations. I hope that doesn't make me and others of my ilk bad guys.
Part of the reason for all the Oil threads/posts is that the 'manufacturer recommendation' for the E39 M5 is unclear/confused/contradictory!
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Old 21st August 2010, 19:30   #373
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Part of the reason for all the Oil threads/posts is that the 'manufacturer recommendation' for the E39 M5 is unclear/confused/contradictory!
And these books of oil threads are not confusing. OK!
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Old 21st August 2010, 21:44   #374
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And these books of oil threads are not confusing. OK!
Did I say that they were not? Of course they are confusing, because no one knows 100% what the situation is, and they probably never will.
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Old 21st August 2010, 21:48   #375
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Did I say that they were not? Of course they are confusing, because no one knows 100% what the situation is, and they probably never will.
Yep. I agree with you, which is why I follow OEM recommendations. And I sleep really good at night by using TWS and doing the oil change myself.
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Old 22nd August 2010, 10:21   #376
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The argument against TWS is that it's too thick, particularly when cold, for general road use. This causes extra drag on the bearings which leads to early failure, especially rod bearings.

The argument for TWS is that it maintains viscosity at high temperatures and has special additives specifically for the S62.

Sleep well!!
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Old 22nd August 2010, 10:21   #377
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Old 22nd August 2010, 15:11   #378
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duplicate post

zzz. Zzzzz. Zzzzz.
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Old 27th August 2010, 07:41   #379
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The argument against TWS is that it's too thick, particularly when cold, for general road use. This causes extra drag on the bearings which leads to early failure, especially rod bearings.

The argument for TWS is that it maintains viscosity at high temperatures and has special additives specifically for the S62.

Sleep well!!


TWS pumps like a 10 weight when cold. I've never seen anyone say TWS was too thick for road use on the S62. The argument against TWS is that the clearances on the new high tension rings was too tight for the thicker oil.

PS BMW 5w30 in europe castrol SLX.....Here in the US, that's not the case. We get a POS high detergency 5w30 that sludges to high hell at 22,500mi intervals (what the SII's are programmed to in the US for cars that are on the free maint program). I used 5w30 in my X5 at 7500mi intervals and German Castrol 0w30 at the other two 7500mi intervals. Basically I was doing two changes in between and getting the 3rd oil change for free from BMW. Cheap insurance IMO
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Old 27th August 2010, 07:46   #380
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Originally Posted by E55AMG2 View Post
TWS pumps like a 10 weight when cold. I've never seen anyone say TWS was too thick for road use on the S62. The argument against TWS is that the clearances on the new high tension rings was too tight for the thicker oil.
mm, wouldn't that mean the oil is to thick?
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