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      03-04-2012, 04:31 AM   #6
SANguru
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Drives: i8, X5 50,M550i,Tesla, MP4-12c
Join Date: Aug 2007
Location: Bay Area, CA

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standard 5w-30... 35is has better cooling and the car stays pretty cool from oil temp perspective. I also had maxcool turned on on my JB4.. brakes on the other hand is a different story. my rotors were glowing especially on pics after turn 2.