Winter Oil recommendation?

Harpua · 11-25-2013, 10:34 AM

I was wondering if any fellow canucks are using a lighter weight oil during winter use.
The 10w60 is great for high revving, high temp track days but I would guess not so much during a -10 degree cold start up and short DD commute.
I was thinking about switching to 0w40, either Mobil 1 or Castrol -- Both of which are fine by BMW's LL01 standards.
Opinions/experience/expert advice appreciated

apecush · 11-26-2013, 09:49 AM

Using M1 0W40 for the winter here and absolutely no complaints. The car starts easier, and the low speed "bucking" tendency the car has when cold is almost completely gone using this oil. Oil temps do run a bit lower at operating temperature as well, so I would imagine the effective viscosity the engine sees is quite similar to sheared TWS.

2000gsr · 12-01-2013, 10:13 PM

stick with 10w60, this whole rod bearing thing is some manufacture defect or/and unless you are revving the shit out of your car before the oil has got to proper temp.

bde · 12-09-2013, 07:15 PM

Actually 10w60 flows better than a w30 in cold temps. It is a special oil blend.

See this comparison table:

Cold Crank Viscosity in cP (Centipoise)
Castrol Edge 10W60 - @ -25 DegC 4860cP
Millers CFS 10W60 @ -25 DegC 7000cP (Most 60 weight are around the 7000cP
Millers CFS 10W50 @ -25 DegC 7000cP
Silkolene Pro S 15W50 @ -25 DegC 6800cP
Silkolene Pro S 5W40 @ -30 DegC 6500cP
Edge Sport 0W40 @ -20 DegC 5850cP
Silkolene ProS 5W30 @ -30 DegC 5000cP
Castrol Egde 0W30 @ -30 DegC 5800cP

Reference thread here: http://forums.m3cutters.co.uk/showthread.php?t=41680

11-25-2013, 10:34 AM	#1
Harpua Private First Class 20 Rep 123 Posts Drives: 2008 E90 M3 Join Date: Sep 2013 Location: Ontario iTrader: (1)	Winter Oil recommendation? I was wondering if any fellow canucks are using a lighter weight oil during winter use. The 10w60 is great for high revving, high temp track days but I would guess not so much during a -10 degree cold start up and short DD commute. I was thinking about switching to 0w40, either Mobil 1 or Castrol -- Both of which are fine by BMW's LL01 standards. Opinions/experience/expert advice appreciated
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11-26-2013, 09:49 AM	#2
apecush Lieutenant 30 Rep 521 Posts Drives: 2008 E90 M3 Join Date: Aug 2011 Location: Edmonton iTrader: (2)	Using M1 0W40 for the winter here and absolutely no complaints. The car starts easier, and the low speed "bucking" tendency the car has when cold is almost completely gone using this oil. Oil temps do run a bit lower at operating temperature as well, so I would imagine the effective viscosity the engine sees is quite similar to sheared TWS.
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12-01-2013, 10:13 PM	#3
2000gsr First Lieutenant 18 Rep 396 Posts Drives: 2018 M4 Join Date: Aug 2008 Location: Toronto, ON iTrader: (0)	stick with 10w60, this whole rod bearing thing is some manufacture defect or/and unless you are revving the shit out of your car before the oil has got to proper temp.
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12-09-2013, 07:15 PM	#4
bde Private First Class 48 Rep 193 Posts Drives: 2024 X3 M40i, AW Join Date: Oct 2009 Location: Toronto iTrader: (0) Garage List 2024 BMW X3 M40i [0.00]	Actually 10w60 flows better than a w30 in cold temps. It is a special oil blend. See this comparison table: Cold Crank Viscosity in cP (Centipoise) Castrol Edge 10W60 - @ -25 DegC 4860cP Millers CFS 10W60 @ -25 DegC 7000cP (Most 60 weight are around the 7000cP Millers CFS 10W50 @ -25 DegC 7000cP Silkolene Pro S 15W50 @ -25 DegC 6800cP Silkolene Pro S 5W40 @ -30 DegC 6500cP Edge Sport 0W40 @ -20 DegC 5850cP Silkolene ProS 5W30 @ -30 DegC 5000cP Castrol Egde 0W30 @ -30 DegC 5800cP Reference thread here: http://forums.m3cutters.co.uk/showthread.php?t=41680
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