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      05-05-2013, 12:40 PM   #159
Radiation Joe
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Drives: '11 JB/BBe-6sp-e90
Join Date: Jul 2008
Location: Macungie PA

Posts: 2,748
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Garage List
2011 e90 M3-Sold  [4.25]
2003 RS6 - Sold  [0.00]
2009 e90 M3 - Gone  [0.00]
2003 M3 SOLD  [0.00]
old 2002  [5.00]
Quote:
Originally Posted by e92zero View Post
I sometimes wonder if the BMW engine was really designed with a thinner grade oil from the start with the tight tolerance that BMRLVR pointed out. Then another BMW department decided to market and use the 10-60w for the prolonged 15k oil change interval. Would really like to know about the use of thinner oil, especially for some of us that change the oil at 5k or 7.5k.
Take a look here.

I've run a mixture of 5W-30 Redline mixed 50/50 with Redline 40W race oil for the last two runs in my car. The current fill is 10W-40 mixed with the 40W. I want to get in some track time and see how the used oil analysis (UOL) comes back.
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Dinan compliment of stuff plus PF rotors and RG63s. Enough for now.
Why, yes. I am an abrasive bastard.
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