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550I road trip

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Old Oct 28, 2006 | 05:22 PM
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My Ride: 1973 porsche 911, 32,000 miles,with all S options and leather sport seats. 2004 porsche GT3,white track car, 2003 porsche boxter "my wife's" 2004 3/4 ton suburban tow vehicle, 24' pace trailer, 2006 BMW530XI, black, auburn, also "my wife's" about to buy a BMW 550I,silver gray,
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Just completed a round trip to North Carolina, and what a great trip. Traffic was moving 80 to 85 most of the way and still averaged 24.3 mpg. The car is a real blast on the longer ride, you just don't want to stop. The run flats were not bad either, when you keep um warm.
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Old Oct 29, 2006 | 10:01 PM
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YOU DID NOT AVERAGE 24.3 MPG IN A 550I ..... RE CHECK YOUR CAR !
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Old Oct 30, 2006 | 03:22 AM
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No reason not to believe him. He did not say his average speed was 80-85. I frequently average 26 in the 4.4L in freeway travel. 450 miles on a tank is achievable in these conditions. Even when sprinkled with runs up to 100 mph and average 80mph I get 24 mpg. My figures are calculated, not iDrive numbers as they typically are positively biased.
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Old Oct 30, 2006 | 06:15 AM
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My Ride: 2007 550i. Sapphire Black Metallic/Auburn Leather/Anthracite trim. Sport/Comfort Access/Navigation/Satellite/HD Radio/HUD/Premium Sound/M Aero Kit/with 50% tint sides & rear. 19" Style 166s.
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I averaged about the same this past August on a 400+ mile trip. This also included quite a bit of 80-90mph traveling.

I found you just have to know how to drive efficiently. Not difficult at all.
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Old Oct 30, 2006 | 06:43 AM
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Originally Posted by bmw528i' post='350166' date='Oct 30 2006, 03:01 AM
YOU DID NOT AVERAGE 24.3 MPG IN A 550I ..... RE CHECK YOUR CAR !

I believe it. I get 18 in the city/highway.

If you leave cruise on I would expect to get 24-25. Heck the cars epa highway rating is 27.
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Old Oct 30, 2006 | 07:56 AM
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Originally Posted by Veight' post='350268' date='Oct 30 2006, 09:43 AM
... Heck the cars epa highway rating is 27.
I think it's more like 22-24 hwy, depending on the transmission.

Nevertheless, I believe jim911's figure -- I'm seeing similar hwy mileage in my car, and I'm not even trying to be very fuel efficient. Hell, if I wanted to go a constant 70, I may be pushing the high 20s.

Also agree you have to manually check the MPG, as the trip computer tends to be optimistic (about 5% in my case).
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Old Oct 30, 2006 | 04:48 PM
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From: mequon, wi, usa
My Ride: 1973 porsche 911, 32,000 miles,with all S options and leather sport seats. 2004 porsche GT3,white track car, 2003 porsche boxter "my wife's" 2004 3/4 ton suburban tow vehicle, 24' pace trailer, 2006 BMW530XI, black, auburn, also "my wife's" about to buy a BMW 550I,silver gray,
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I did not try for milage at all, half this trip is in the blue ridge mountains pushing pretty hard. Then from southern indiana to the milw. area is flat. I have no reason to BS about it, I just think it's amazing how good cars are today. As far as averages the one section we averaged 73.2 MPH for about 325 miles.
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Old Oct 30, 2006 | 06:39 PM
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Originally Posted by bmw528i' post='350166' date='Oct 30 2006, 02:01 AM
YOU DID NOT AVERAGE 24.3 MPG IN A 550I ..... RE CHECK YOUR CAR !

Yes he did!!!!!!!!!!!! I averaged 24 mpg on my last road trip. 85+ and 100+ in some spots. That valvetronic motor is pretty nice.

CVT Benhogan
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Old Oct 30, 2006 | 07:16 PM
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Originally Posted by bmw528i' post='350166' date='Oct 30 2006, 01:01 AM
YOU DID NOT AVERAGE 24.3 MPG IN A 550I ..... RE CHECK YOUR CAR !
I'm sure he did. I've hit 24-25 mpg on several 300+ miles all-highway road trips. My best-ever segment was a 125 mile run from home to Road America in Elkhart Lake WI this summer ... mostly at 75-80 mph ... and I got 27.1 mpg. Mileage on the track was .... lower.
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Old Oct 31, 2006 | 08:34 AM
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Originally Posted by TXPearl' post='350297' date='Oct 30 2006, 12:56 PM
I think it's more like 22-24 hwy, depending on the transmission.

Nevertheless, I believe jim911's figure -- I'm seeing similar hwy mileage in my car, and I'm not even trying to be very fuel efficient. Hell, if I wanted to go a constant 70, I may be pushing the high 20s.

Also agree you have to manually check the MPG, as the trip computer tends to be optimistic (about 5% in my case).

I was wrong. According to the brochure and my sticker...its 17 City 25 Highway.
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