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      11-04-2012, 09:25 PM   #11
bradone1
BMW Extraordinaire
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Drives: 2013 BMW M5
Join Date: Aug 2012
Location: Miami

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Quote:
Originally Posted by stealth.pilot
Quote:
Originally Posted by Infamous///M5 View Post
What about royal purple ?
They aren't BMW approved. Neither is AMSOIL.

If you want that sort of thing, you should get Pennzoil Platinum 5W-30 european blend. Bob the oil guy uses it.

The thing that bothers me about Castrol Edge is I have read multiple reviews saying it is a dirty oil. There is also a video on youtube comparing it to BMW Oil and the BMW oil seems cleaner. This a concern in an engine known to burn oil. You want an oil which produces little ash.
I think that YouTube video test actually shows the bmw oil to be sludgy and the castrol holding up better?!?