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      10-12-2013, 07:42 AM   #139
CSBM5
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Drives: 2019 M2 Comp, 2011 M3, etc
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Quote:
Originally Posted by sensi09 View Post
What was the thinking behind 10w60 being better for bearing wear?
The S62 doesn't have the tight bearing clearance issues of the other M motors discussed herein; hence a higher viscosity oil results in a thicker film in a hydrodynamic bearing like a rod bearing. This works fine unless you get into a situation discussed here where clearances are too tight.
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