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      11-22-2012, 09:54 AM   #17
bradone1
BMW Extraordinaire
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Drives: 2013 BMW M5
Join Date: Aug 2012
Location: Miami

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Just an update since I started this thread, I am very good friends with my dealer's shop foreman (bmw mechanic) and he ensured me to use the regular bmw high performance oil 5w-30 (in the silver bottle that they use for the regular 535i)

He said that he would highly recommend me paying for an additional oil change in between at 5k intervals if I am planning on keeping the car and i want to be in great shape

I will allow him to use the bmw oil even though i hear it can sludge earlier than Castrol, i mentioned this sludge factor and he said 'that's why I said to do it every 5k'

Lets see what happens, I'm not so sure I feel like showing up to my oil change appt with bags of my own castrol oil either...