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Originally Posted by cary
The X5 is not designed to use a 0w-20 oil. BMW sets it's own oil specifications, known as LL-98, LL-01 & LL-04. Common to all of these oils is the requirement that they have an HTHS of greater than 3.5, same as ACEA A3. A 0w-30 oil with an HTHS in the mid 2 range will lead to accelerated wear at the bearings and cam lobes.
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I don't see oils labelled LL-98, 01, or 04 any more. My BMW dealer here doesn't carry them, local parts stores don't carry them. Interestingly, in my latest vehicle owner's manual (535i) there is no reference to the LL oil spec. I suspect that BMW has quietly dropped it, possibly because it never got traction (figuratively speaking). Oil manufacturers weren't interested in another private test, I suspect. A3 is worthwhile, agreed. Do you have any information on the BMW LL standard that is recent, from BMW themselves?
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2007 X3 3.0si, 6 MT, Premium, White
Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
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