View Single Post
  #6  
Old 11-04-2012, 08:55 AM
quackbury's Avatar
quackbury quackbury is offline
///Monkeyazz Duck
Location: Not In Kansas Any More
 
Join Date: Dec 2005
Posts: 4,281
Mein Auto: 535iX M Sport; 328i Wagon
Quote:
Originally Posted by tgb1974 View Post
I am about 1/2 through my first tank on a new 2012 X5d and, after about 90% true city driving (Chicago), the trip computer is showing about 15.7 mpg. I am not hitting it hard or anything, just a ton of stop-and-go traffic (and yes, I reset the trip computer before I left the dealership). Is this normal or does it get better over time? I am most interested to hear from X5d owners who do mostly city driving. Thanks in advance!
"Hitting it hard" has nothing to do with it. It takes a lot of energy to accelerate a 6,000 pound vehicle from a dead stop to 20 or 30 mph, a process which you are repeating over, and over, and over again.

It takes exponentially less energy to keep that same 6,000 pound vehicle rolling at 75 mph down I-80. Why should this be surprising? Did someone tell you that diesel repealed Newton's Laws?

Sent from my HTC Inspire using BimmerApp
__________________


Current BMW's:
2014 535i MSport Space / Black, ZCW, ZDA, ZLP, ZLS, ZPP, H-K and 704
2014 328i Sport Wagon, Glacier / Black, ZSL, ZD2, ZD3, ZDH, ZLP, ZPP, ZTP, and H-K


Prior BMW's
2011 535ix MSport
2011 X5 35D
2008 ///M3 Vert
2008 X5 3.0
2007 X5 3.0
2006 X5 3.0
2006 550iA SP
2003 540iA M-Sport
Reply With Quote