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      02-24-2014, 10:23 AM   #8
First Lieutenant
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Drives: '14 335i M sport
Join Date: Oct 2008
Location: San Diego, CA

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Originally Posted by viperez View Post
as a matter of fact this is something I do not understand... I change engine oil every 5000-6000km ( we use km here), despite the recommendation from the factory, as I do notice a significant degrade of the engine oil itself.
How did you notice significant degradation of the engine oil? Used Oil Analysis? Can you post a report showing significant degradation at the BMW recommended oil change intervals?

'14 328d, '13 M3 ZCP, '12 535i, '11 335d, '09 Z4 DINAN Stage II, '05 330i ZHP, '05 M3 ZCP, '02 M3, '91 328i, '90 535i, '88 528e, '88 M5, '87 M6, '95 Z3, 95 M3, '93 M5, '87 325e, '89 535i, '86 635i, '73 Bavaria.