How many of you diesel drivers plan or have changed their oil before your car tells you it is ready to be serviced? Being somewhat anal I have always changed my oil the first time between 2 and 3K miles. I will likely do the same thing but am curious if any of you are doing or have done something similar. I need to read my manual but will ask if the 335d uses the same BMW synthetic oil as I have a dozen quarts in my garage and would like to use it but I do need to buy a filter as I am sure the filters that fit my Z4s30i will not fit the 335d, am I correct? Thanks again for all your advice to this NOOB.