28 MPG
Thread Starter
Members
Joined: Sep 2007
Posts: 13
Likes: 0
From: Austin, TX
My Ride: 2004 545, MT, Black Sapphire, Auburn, Cold Weather, NAV, Bluetooth, mp3
Originally Posted by TXPearl' post='487928' date='Oct 30 2007, 02:16 PM
If you did this recently, you probably had a 20-30 mph tailwind, which explains the unusually high mileaage. Had you been heading north, into the wind, you'd have probably seen <= 20 mpg. Averaging the two directions would put you in the 24-25 mpg range, which is about what I average at interstate speeds.
Also, is this based on the trip computer? This is usually about 5% or 1mpg optimistic.
Still, not bad for a V8.
Also, is this based on the trip computer? This is usually about 5% or 1mpg optimistic.
Still, not bad for a V8.
Contributors
Joined: Sep 2004
Posts: 1,290
Likes: 0
From: Runcorn, NW-UK
Originally Posted by Austin545' post='488006' date='Oct 30 2007, 03:52 PM
I drove up last Friday and was averaging 28mpg per the computer until i sat for 30 min at idle due to an accident which brought my avg mpg down to 27.3 by the time i got to the border. One the way back the next day I was at 28mpg. But the entire trip i was doing my best to feather the throttle but at the same maintain 80-85 mph to get my avg as high as possible. I did do a 95mph stint for about 20 miles and thought that would bring down the mpg but it hovered around 28mpg still. Now I just filled up my gas tank and 3/4 accelerated into traffic (reset the mpg computer) and averaged 6mpg during that 500ft of acceleration. Now i realize when i accelerate hard I'm getting nascar-like fuel mileage (4-5mpg) and why my in town mpg is lousy sometimes. If i pay attention i can average 20mpg in mixed city/hwy driving on a tank and if I accelerate hard occasionally it's 17mpg or less over a tank.
You buy a car like yours not to "pay attention so you can achieve 20mpg", but to drive hard and enjoy!!
Contributors
Joined: Aug 2005
Posts: 2,114
Likes: 0
From: Houston, Texas
My Ride: 2005 BMW 545i, Silver Grey, Sport Package, R. Shades, Cold Pkg, Sat. Rad., Prem. Sound.
Originally Posted by TXPearl' post='487928' date='Oct 30 2007, 02:16 PM
If you did this recently, you probably had a 20-30 mph tailwind, which explains the unusually high mileaage. Had you been heading north, into the wind, you'd have probably seen <= 20 mpg. Averaging the two directions would put you in the 24-25 mpg range, which is about what I average at interstate speeds.
Also, is this based on the trip computer? This is usually about 5% or 1mpg optimistic.
Still, not bad for a V8.
Also, is this based on the trip computer? This is usually about 5% or 1mpg optimistic.
Still, not bad for a V8.
Contributors
Joined: Oct 2004
Posts: 14,776
Likes: 0
From: So Cal, USA
My Ride: 545iSMGSilver GrayAuburn Dakota LeatherLogic 7 Premium SoundSports Package
Yet you were charged Gas Guzzler tax when you bought your 545 in 2004? Kinda lame if you ask me... and these trucks and SUVs with 9mpg and 20 MAX MAX MAX highway get away with no GGT.
Contributors
Joined: Sep 2007
Posts: 1,084
Likes: 0
From: Southern Europe
My Ride: E61 CarbonBlack 535d, Ventilated and Heated Comfort Seats with Massage in Black Nasca Leather, Dark Poplar Wood, Professional Navi, Folding Rear Seats, Load Through, Advanced Remote, PDC, Bluetooth, Dimming and folding Mirrors, Bi-Xenons, Hi-Fi, Tinted
Originally Posted by Russ1974' post='488009' date='Oct 30 2007, 10:56 PM
Seriously - if you are so bothered, why keep the 545i? Buy one of these ... http://www.toyota.com/prius/
You buy a car like yours not to "pay attention so you can achieve 20mpg", but to drive hard and enjoy!!
You buy a car like yours not to "pay attention so you can achieve 20mpg", but to drive hard and enjoy!!
Btw. Prius sucks
I haven't seen any of these mutants in Europe yet
Contributors
Joined: Jun 2007
Posts: 113
Likes: 0
From: Notts, UK
My Ride: MY2004 530d. Poverty spec
Originally Posted by hondik' post='488053' date='Oct 31 2007, 12:01 AM
Btw. Prius sucks I haven't seen any of these mutants in Europe yet
I haven't seen any of these mutants in Europe yet Get a nice 530D. 214bhp, about the same torque as an M5, and still average 40mpg (UK gallons). Luverly
Andrew
Contributors
Joined: Oct 2007
Posts: 11,084
Likes: 0
From: Thousand Oaks, California
My Ride: 2008 550i Jet Black on Black Leather, SAT with Paddles, Logic 7, Comfort Seats, NAV, Sport Package, PDC, Xenons, Sirius, Trinity 12W LED Angel Eyes, RPi GT Exhaust, M rear spoiler, ACS Roof Spoiler, Tinted Tail Lights, Bimmian Carbon Fiber Pillar Trim, Bimmian Shadow 550i emblem, RPi Scoop, E60 Forum Cling, Mtec bulbs in fog lights, Mtec 2W LED for License Plate Light Bulbs, K&N Filter, Bimmian LED Smoked Side Markers, Blackout roundels, Carbon Fiber Kidney Grills.
Retired Rides - 1989 325i convertible, 1995 M3, 2002 X5, 2005 545i, 2008 X5 (Lemon)
Originally Posted by Russ1974' post='487929' date='Oct 30 2007, 12:17 PM
Yes I do. In the UK, it's always cold. Everybody should buy cars with the lowest, worst MPG possible. Do what you can to speed up global warming, let's get the UK hot ! Plus, once the UK is nice and hot due to global warming, we won't need to fly overseas to hot countries in the Summer, thus reducing pollution. See, it will all work out in the end. And, as an added bonus, apparently when the sea rises, France will sink.
Very funny Russ, I understand having family "across the pond", not too fond of the French either! 
Contributors
Joined: Sep 2007
Posts: 1,084
Likes: 0
From: Southern Europe
My Ride: E61 CarbonBlack 535d, Ventilated and Heated Comfort Seats with Massage in Black Nasca Leather, Dark Poplar Wood, Professional Navi, Folding Rear Seats, Load Through, Advanced Remote, PDC, Bluetooth, Dimming and folding Mirrors, Bi-Xenons, Hi-Fi, Tinted
Originally Posted by AlexFW' post='488407' date='Oct 31 2007, 11:48 PM
Senior Members
Joined: Sep 2005
Posts: 4,096
Likes: 0
From: Italy, Milano
My Ride: 545i SMG with Limited Slip Differential
Model Year: 2005
Originally Posted by hondik' post='488530' date='Nov 1 2007, 07:58 AM
It's downhill, right
No, it wasn't downhill but flat .
Look at this instead :