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545i gas mileage

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Old Jul 26, 2008 | 02:03 PM
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545 owners,
what are you guys averaging in gas mileage? ive been doing 18.5 on the highway...i know i can get better than that, but im so tempted to drive with a heavy foot
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Old Jul 26, 2008 | 02:14 PM
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Originally Posted by phocker' post='633230' date='Jul 26 2008, 03:03 PM
545 owners,
what are you guys averaging in gas mileage? ive been doing 18.5 on the highway...i know i can get better than that, but im so tempted to drive with a heavy foot
For me, i get about 350miles/17Gallon. About 20.5MPG. That's about half highway half street.
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Old Jul 26, 2008 | 02:23 PM
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My Ride: 2006 550i Black Saphire/Black Dakota Leather- Loaded- M5 Appearance Package, Sport Package, Pro logic 7 Premium Sound, Navigation, Cold Weather Package, Comfort Package, Heads-up Display, park Distance Control, Bluetooth, Active Steering, Electric Rear Sunshade, Rear Folding Seats, Front/Rear Heated Seats, Xenon lights, Satelite Radio- Extended Maintenance, CPO (Considering Tire/Wheel Insurance)
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24mpg hwy, about 15 city
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Old Jul 26, 2008 | 03:09 PM
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14 city and 19 highway. Drive mostly in the city with a heavy foot.
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Old Jul 26, 2008 | 03:20 PM
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My Ride: '05 545 Titanium Silver, Black Leather - Nav, Logic 7, Cold weather. Mods: Carbon filter removed. M5 iDrive knob. Umnitza license plate LEDs. MP3 40% 3M tint ACS Anti-Roll(sway) bars RPI Scoop G-tech Pro RR CF Roundels CF Wheel caps
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With a very heavy foot after my ECU remap I've been quite happy with my MPG...

545i gas mileage-bearmountain23.jpg
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Old Jul 26, 2008 | 04:00 PM
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Originally Posted by Brit_in_NJ' post='633271' date='Jul 26 2008, 07:20 PM
With a very heavy foot after my ECU remap I've been quite happy with my MPG...

Attachment 55509
I have done the math... About 27.5 mpg hwy and 25.2 local. I have been very pleased with the results. On the highway i run 250 to 350 miles at a stretch.
I also noticed that I get max mpg when using 93 octane. I actualy got 2 mpg less when running mid-grade.
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Old Jul 26, 2008 | 04:26 PM
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I've been averaging 21.5 with a 50/50 mix of highway and city.
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Old Jul 26, 2008 | 04:46 PM
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The trick to good gas mileage on any car is filling up when the car is at 1/2 a tank. Fuel injectors don't work as hard and sediment from additives don't cause faster burning of fuel from 1/2 to empty. If you don't believe me, try it! Notice how from F to 1/2 you usually get 200 or so miles and then only 85 more from 1/2 to E? Try filling up every 1/2 tank and see. =)
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Old Jul 26, 2008 | 08:53 PM
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Originally Posted by Brit_in_NJ' post='633271' date='Jul 26 2008, 06:20 PM
With a very heavy foot after my ECU remap I've been quite happy with my MPG...

Attachment 55509


whats the ECU remap?

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Old Jul 26, 2008 | 08:56 PM
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Originally Posted by Howitzer' post='633314' date='Jul 26 2008, 07:46 PM
The trick to good gas mileage on any car is filling up when the car is at 1/2 a tank. Fuel injectors don't work as hard and sediment from additives don't cause faster burning of fuel from 1/2 to empty. If you don't believe me, try it! Notice how from F to 1/2 you usually get 200 or so miles and then only 85 more from 1/2 to E? Try filling up every 1/2 tank and see. =)
howitzer,
i shall experiment! exccccelllent smithers
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