Almost 3 months and 4800 miles, I am very satisfied as of now.
Averaging around 24 MPG with 60/40 hwy/city driving.
I don't even have all the bells and whistles Still I love my X5d..
Always waiting to go for long drives....

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Turbo-Diesel trucker
2010 X5d – Vermillion Red/Saddle Brown|ZCW|386|609|620|6FL|6UH
Ordered 10/20/09 – Production # 10/23/09 – Production Start Date 11/23/09 - Production Completion 12/03/09 - Dealer Received: 12/07/09 - Actual Delivery 12/12/09
2007 Acura MDX (Tech and Ent) – Nimbus Gray Metallic/Black