diesel ?

[wanderlust]

Question 1: I am very close to purchasing an X5 diesel but I forgot to ask the dealer one thing, does it need a additive like Mercedes Bluetech? If so is there anyplace to order it from? It docent matter to me if it does or not other then to know and have a supply on hand if it does. The BMW site does not say anything about it that I could find. Question 2: I have a job that I try to optimize by geography so it is entirely possible that I will be in a very cold climate (As jobs there pay well), anybody have any problems starting the diesel in the cold? Thanks in advance for any info. JB