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      10-09-2006, 02:28 PM   #97
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Drives: 06 325i
Join Date: May 2006
Location: DC Metro Area

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Quote:
Originally Posted by 742
The reason is that the version sold in the United States is ACEA A1, on the thin side of the range of what is a 30 weight oil and has an HTHS of 3.09. It Also lacks BMW LL-01 approval.

On the other hand the Mobil 1 5W-30 that you can buy in Europe, like the oil your BMW dealer is using, meets BMW LL-01/-04 specs and is ACEA A3. So you see that not all Mobil 1 5W-30 oils are the same.

The Mobil 1 oil available in North America that is closest to the BMW oil that your dealer is using is 0W-40. This is a very good oil, recommended not only by BMW but by MB, Prosche and VW/Audi. It is no accident that this is called "European Formula".

The North American Mobil 1 5W-30 is a good oil, and I have used a lot of it with good results--in applications where it is appropriate. However it is not intended for 18,000 oil changes, and its lower HTHS compared to the BMW synthetic should raise a flag.
You think the NA operations are too stupid not to know the differences between the M1 versions?