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Resurrecting this old and very useful thread with an "oh no, another oil question". Sorry...did a few searches, and seems like the derided oil threads are getting outdated.
New to me 2015 F15 X5 diesel, and selecting oil. I like the FCPEuro lifetime approach (buy everything through them for my E46 M3 already), and they have the BMW TwinPowerTurbo 0w30 oil, LL-12FE for only $7.13/liter. My other inclination is to go Liqui Moly Top Tec 4605 5w30 (LL-04) and run that for the life of my X5. I've also read the VW 505 and 507 requirements are very tough to meet, and looks like Top Tec 4200 meets that (4605 only has 505 so far, though I thought 4605 was "better").
So I've got Liqui Moly at about $10/liter, and BMW for $7/liter, and FCPEuro will essentially replace it for life for the cost of return shipping. What's the best for my engine? Or should I skip that entirely for the sake of the engine and go Rotella T6 or Pennzoil Euro L (which I understand might be identical to BMW TPT)?
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