^ No problem being the guinea pig for 325i owners. Now who will be the guinea pig for 335i owners?
Edit: As for the Castrol import multi-vehicle oil. I have no intentions on leaving it in there passed 20,000 - 25,000 miles. I don't use the syntheitc stuff because I don't flush and feel like I am wasting the fluid. When I change my oil I change it once then again several thousands miles later then next change at 20,000 - 25,000 miles, and then repeat.