E60 Discussion Anything and everything to do with the E60 5 Series. All are welcome!

550 mpg and range

Thread Tools
 
Search this Thread
 
Old 03-25-2008, 05:15 AM
  #21  
Contributors
 
katheikia's Avatar
 
Join Date: Sep 2005
Location: NJ (EXIT 4), SUMMERS IN GREECE
Posts: 1,447
Likes: 0
Received 0 Likes on 0 Posts
My Ride: 2006 550 SMG
Default

Originally Posted by AlB' post='550169' date='Mar 24 2008, 07:38 PM
I am not sure of your question. It doesn't stop computing that I can tell, but does take a long time to change. I never reset for trips or for any other reason for that matter. After my last highway trip my avg went up to 21.2 and has slowly gone down from there. Anyone else feel free to chime in with your experience.
Oh okay. I just realised yesterday that it continues to compute and changes slowly. It seems mine is always saying 11mpg.
Old 03-25-2008, 10:55 AM
  #22  
Members
 
jackstraw's Avatar
 
Join Date: Nov 2007
Location: Los Angeles, CA
Posts: 51
Likes: 0
Received 0 Likes on 0 Posts
My Ride: *on order* expected 12/20/07: 2008 550i space gray, gray leather, anthracite bamboo, sport pkg, logic7, iPod, HD, Sirius, Navigation, head-up display, comfort access, heated front seats, fold-down seats
Default

I reset the trip computer every time I fill up with gas. If you don't reset it for a long time, the average is less accurate to tell you how the car is performing now. I guess it's just a matter of what information you are looking for. Are you looking for the avg over the past year? Or the past 2 weeks? Throw a few road trips to Vegas (or where ever) in there and I bet you those numbers are quite different. For me, I'm more interested in how my car is performing currently with the type of driving that I am doing this week.
Old 03-25-2008, 12:30 PM
  #23  
Senior Members
 
stanatl's Avatar
 
Join Date: Nov 2006
Location: Atlanta, GA
Posts: 305
Likes: 0
Received 0 Likes on 0 Posts
Default

About 18,000 miles on my 550i and I get about 17 mpg combined city/highway and about 24 mpg highway only (75-80 mph). I really don't drive just city enough to have a feel for the mpg.
Old 03-25-2008, 02:27 PM
  #24  
Senior Members
 
calpalmer's Avatar
 
Join Date: Dec 2007
Location: Western Washington
Posts: 538
Likes: 0
Received 0 Likes on 0 Posts
My Ride: 2008 Space Gray 550i, Light Poplar Wood, Anthracite Head Liner, Sport Package, Sport Automatic Transmission, Cold Weather Package, Front Ventilated Comfort Seats in Black Nasca Leather, NAV, HUD, Active Steering, Comfort Access, Night Vision, Lane Deviation Warning, Active Cruise Control, Heated Rear Seats, Folding Rear Seats, Power Shade w/ Rear Side-Shades, Rear Air Bags, Logic 7, HD Radio, Sirius Satellite Radio, iPod/USB Adapter. Car in BMW Body Shop, estimated completion 01/24/07.
Default

Brand new 550i here, 1500 miles so far. 19.5 mpg (hand calculated based on fuel consumed), at average speed of 35 mph. Except for today's trip, most of the miles have been slow-and-go or stop-and-go Seattle traffic. I did just complete a two-day road trip averaging 75 mph through eastern Oregon and Washington, got 22.9 mpg. I expect I'll pick a few mpg's as it breaks in. On the other hand, now that I am past the magical 1200 miles, I'll probably be in S and M mode more frequently.

Side note, I did test out the M mode a bit on the windy road from Arlington to Condon, both ways yesterday. What a tight flat handling sprinter this is! Love the handling. I DO have to get that V1 wired in though, was worried about the Gilliam County deputy the whole time!

Cal
Old 03-25-2008, 03:30 PM
  #25  
Senior Members
 
Richard in NC's Avatar
 
Join Date: Mar 2007
Location: North Carolina, USA
Posts: 1,517
Likes: 0
Received 0 Likes on 0 Posts
My Ride: 2008 BMW 550i 2006 BMW X3
Default

Originally Posted by AlB' post='550169' date='Mar 24 2008, 07:38 PM
I am not sure of your question. It doesn't stop computing that I can tell, but does take a long time to change. I never reset for trips or for any other reason for that matter. After my last highway trip my avg went up to 21.2 and has slowly gone down from there. Anyone else feel free to chime in with your experience.
The longer you go without resetting the average, the less affect a change in driving style will have on the average.
Since there are 2 counters (Onboard Info & Trip Computer), I leave the Onboard Info alone. It is the average since I bought the car (20.5). I reset the Trip Computer average evey tank or at the beginning of a trip. It is a better indicator of the recent gas mileage.
Old 03-25-2008, 04:18 PM
  #26  
Senior Members
 
calpalmer's Avatar
 
Join Date: Dec 2007
Location: Western Washington
Posts: 538
Likes: 0
Received 0 Likes on 0 Posts
My Ride: 2008 Space Gray 550i, Light Poplar Wood, Anthracite Head Liner, Sport Package, Sport Automatic Transmission, Cold Weather Package, Front Ventilated Comfort Seats in Black Nasca Leather, NAV, HUD, Active Steering, Comfort Access, Night Vision, Lane Deviation Warning, Active Cruise Control, Heated Rear Seats, Folding Rear Seats, Power Shade w/ Rear Side-Shades, Rear Air Bags, Logic 7, HD Radio, Sirius Satellite Radio, iPod/USB Adapter. Car in BMW Body Shop, estimated completion 01/24/07.
Default

On the question above, about the metric the "energy control" gauge is monitoring, I think it's intake vacuum.
Cal
Old 03-25-2008, 05:25 PM
  #27  
Senior Members
 
GT Premi's Avatar
 
Join Date: Nov 2007
Location: Charlotte, NC, USA
Posts: 770
Likes: 0
Received 0 Likes on 0 Posts
My Ride: 2008 BMW 550i Sport Carbon Black Metallic/Cream Beige Manny tranny and other stuff Recently gone, but never forgotten: 2005 Ford Mustang GT (hence the name) Torch Red/Crimson Manny tranny and every option available for that year 2002 Chrysler 300M Special Brilliant Black/Light Taupe/Dark Slate Autostick and goo-gobs of neat features that I will sorely miss
Default

I would think a car like this would be far more advanced than to use vacuum to measure anything. I'm guessing it's actually a calculation of fuel flow over distance travelled.
Old 03-26-2008, 06:56 AM
  #28  
Members
 
Rob Ouellette's Avatar
 
Join Date: Dec 2007
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default

Just another observation. I bought my 550 about 10 days ago, the first tank of gas averaged 17.4 mpg. 6 speed. It has less than 300 miles on it, so we'll see about how it develops. As a comparison of my driving style, my 2001 330 with a 5 speed that I just retired averaged 27-28 mpg.
Old 03-26-2008, 07:06 AM
  #29  
Senior Members
 
calpalmer's Avatar
 
Join Date: Dec 2007
Location: Western Washington
Posts: 538
Likes: 0
Received 0 Likes on 0 Posts
My Ride: 2008 Space Gray 550i, Light Poplar Wood, Anthracite Head Liner, Sport Package, Sport Automatic Transmission, Cold Weather Package, Front Ventilated Comfort Seats in Black Nasca Leather, NAV, HUD, Active Steering, Comfort Access, Night Vision, Lane Deviation Warning, Active Cruise Control, Heated Rear Seats, Folding Rear Seats, Power Shade w/ Rear Side-Shades, Rear Air Bags, Logic 7, HD Radio, Sirius Satellite Radio, iPod/USB Adapter. Car in BMW Body Shop, estimated completion 01/24/07.
Default

Originally Posted by GT Premi' post='550730' date='Mar 25 2008, 06:25 PM
I would think a car like this would be far more advanced than to use vacuum to measure anything. I'm guessing it's actually a calculation of fuel flow over distance travelled.
You might be right, certainly that calculation is driving the results being accumulated and displayed in various places, but the vacuum gauge has been used by BMW for a long time -- maybe not now, but in the past for sure. And, for whatever it's worth, those displays correlate pretty well with hand-calculated economy over long distances at constant speed.

There are BMW Techs on the forum, maybe one of them will tell us what that gauge is displaying...

I agree with someone on another thread, however, that all of the options for displaying instantaneous and cumulative fuel economy is like overkill, a waste of space and increase in clutter. I'd give any number of them up for an oil pressure or water temperature display!
Old 03-26-2008, 08:30 AM
  #30  
Senior Members
 
Heloha's Avatar
 
Join Date: Jul 2005
Location: Southern California
Posts: 1,167
Likes: 0
Received 0 Likes on 0 Posts
My Ride: 2006 550i SMG
Default

Originally Posted by MRV99' post='549341' date='Mar 23 2008, 02:46 AM
Anything too much different takes alot of work and frankly to get prius style MPG you might as well not have purchased an 550 and looked at a I6 or D model. You don't buy this car because you want great numbers.
I don't neccessarily think its all just about the MPG...but what I would like to see is greater range. A 1.5-2.5+ gallon larger tank would do the trick for me.


Quick Reply: 550 mpg and range



All times are GMT -8. The time now is 07:02 PM.