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      01-08-2013, 10:42 AM   #7
Putcha ang ganda...
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Drives: 08 MR E92 M3
Join Date: Feb 2010
Location: Los Angeles, Brea CA.

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Originally Posted by C|3R1C View Post
BMW has 15k as their schedule. People here (including myself) feel that this is too long even for a full synthetic because our engines rev so high. To improve longevity, I do an extra interval every 7.5k miles and I let me car warm up about 5 minutes prior to driving it. Those who track or constantly beat on their cars usually do it every 5k. It's a really simple DIY and the kit is only $160.
I agree...

even some of the BMW tech and veteran tech says 15k is just insane.. testing the oil might not show, but just having to have a piece of mind I suggest changing the oil...