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Fresh oil... It might be a good idea to go somewhat heavier than stock to deal with the inevitable high oil temperatures:
All-around and track
Any good 0W-40 or 5W-40 synthetic that meets minimum requirements (API SM)
Castrol 5W-50
Mobil 1 15W-50
Specifically for track use:
Castrol TWS 10W-60
Liqui-Moly 10W-60
Motul 10W-60
I for one would not track on the 5W-30 OE oil. It may be OK on the street but at 300º F oil temps I'd feel a lot better with a more viscous oil.
You don't need to use an oil that meets BMW LL-01 unless you want to run extended drain intervals (more than 7.5k mi).
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For Sale: 2009 335i 6MT (E92/N54), Sport / M-Technic / no iDrive / Black Sapphire / Black Dakota Leather, ZCW, 6FL, PDC, 19" VMR VB3, Pilot Super Sport, M3 control arms + tension links (fr) S. California
Last edited by NoTempoLimitN54; 10-30-2013 at 09:38 AM..
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