I did it just because it seems so wrong not to. If you do a search you will find a lot of people discussing this and some of them sent out their oil for analysis. I can't remember what the consensus was but it didn't matter to me either way as I was always going to pay for it regardless. And, I'm leasing but still wanted to do it even though I probably won't have it past the 3 year term.
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2014 EBII 435i xDrive M-sport
Gone: 2011 TiAg F25 X3 xDrive35i M-sport
Gone: 2008 TiAg w/Coral Red E88 135i Cab M-sport
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