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      11-09-2017, 10:30 AM   #45
WP1
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Drives: White BMW 135i Convertible
Join Date: Sep 2013
Location: College Park, MD

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yes I have the manual, but like to talk to my car friends here

I have the N54 and now I know where I can add. I just have to turn/open the square lip in the middle.

I just talked to the dealer and told me they added the Castrol 5w-30 when the oil was changed in Feb.

Can you mix oil ratings? like if I add 0w-40 or should I just add what is in there?

Thanks,
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