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Old 03-16-2009, 01:23 AM   #31
Nemesis
just ride the damn thing
 
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Joined: Jan 2004
Location: a van down by the river
Oddometer: 419
Quote:
Originally Posted by The Griz
For MPG today, my OBC was throwing numbers pretty consistent with what BMW claims. 60 mpg or so at 55 mph, and 45 mpg or so at 70 mph. However, I'm a bit concerned with the the number it was posting for "miles until fill." With a full tank of gas it was saying 134 miles until fill needed. weird. Shouldn't it say more like 210 or 220 miles? Thoughts?
Quote:
Originally Posted by Calibob
Same here... When I fill up, my OBC shows a "greater than" > symbol before the projected miles to refill. I read somewhere that this is normal and the OBC won't start counting down until your below the "greater than" predicted mileage.
2100 miles and I have been averaging about 56mpg
75-80 mph highway...
If you consult you Mexican friend Manuel he will tell all (on page 41)....


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Old 03-24-2009, 08:38 PM   #32
RedHawk47
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Joined: Oct 2006
Location: Berthoud, CO
Oddometer: 368
A key to better fuel economy

I've been getting about 45 mpg per the OBC, so I'm jealous. Mostly a 8 mile commute on country roads with few stops.

But I figured something out this weekend. I've been doing most of my riding with the OBC set on ambient temperture - because it's been cold and I wanted to know how much protection I needed for what the temperature was.

It has been warmer lately so I changed the OBC to show my current fuel comsumption. I found that if I accelerate to "X" mph my fuel usage will be "Y" mpg. But if I accelerate to "X+5" mph and then slow down to "X" my fuels usage will be "Y+10" mpg. I was testing mostly around 50 mph. Don't know how well it works at higher speeds but I expect it will still make some difference. Your thoughts are appreciated.
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Old 03-25-2009, 03:00 AM   #33
sysie
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Joined: May 2007
Location: Melbourne, Australia
Oddometer: 280
281.8km done and still 136km to go, that is 417.8km (259.6 miles) on a tank !, have to add that this was mostly doing 80 - 90km/h on gravel and the nearest fuel was far ahead..... so my primary objective was to save fuel..

This is 26km/l or 61.8 m/g

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Old 03-28-2009, 02:51 PM   #34
The Griz
North Forest Rider
 
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Joined: Nov 2008
Location: Minnesota
Oddometer: 3,768
Been pulling 48mpg @ 65-70mph with panniers on and fully loaded. 15-20mph winds.
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Old 03-28-2009, 02:54 PM   #35
The Griz
North Forest Rider
 
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Joined: Nov 2008
Location: Minnesota
Oddometer: 3,768
Quote:
Originally Posted by sysie
281.8km done and still 136km to go, that is 417.8km (259.6 miles) on a tank !, have to add that this was mostly doing 80 - 90km/h on gravel and the nearest fuel was far ahead..... so my primary objective was to save fuel..

This is 26km/l or 61.8 m/g

Makes sense. Seems to be along the lines of what I'm getting at those speeds too.
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Old 03-29-2009, 01:19 AM   #36
cba191
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Joined: Sep 2004
Location: SLC, UT
Oddometer: 575
i need to fill up tomorrow, and i'm at 220 miles with no low fuel indicator yet. this is primarily with 75mph commuting. i've noticed that with the weather warming up, my mpg is improving dramatically/
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Old 03-29-2009, 09:11 PM   #37
cba191
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Joined: Sep 2004
Location: SLC, UT
Oddometer: 575
Quote:
Originally Posted by cba191
i need to fill up tomorrow, and i'm at 220 miles with no low fuel indicator yet. this is primarily with 75mph commuting. i've noticed that with the weather warming up, my mpg is improving dramatically/
whoops. another victim of the lacking accuracy of the fuel gauge. filled up this morning and she took just over 4 gallons.
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Old 03-29-2009, 09:43 PM   #38
The Griz
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Joined: Nov 2008
Location: Minnesota
Oddometer: 3,768
I have 148 miles on my current tank of gas. The OBC tells me I have 52 miles until I need to fill. So I'm assuming the fuel light will come on in 20 miles or so. I'm getting kind of sketched out with this fuel level sensor consistency. How am I getting this bad gas mileage? Shouldn't I be pulling at least 200 miles before the fuel light comes on? I'm still in the break-in process. I've got 400 miles on the bike.
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Old 03-31-2009, 04:28 AM   #39
neilsmiff
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Joined: Jan 2007
Location: Wales (mon - fri) : Lincolnshire (sat - sun), UK
Oddometer: 17
Factory Option...

Quote:
Originally Posted by dwayne
oops made an assumtion. I assumed the number listed in the manual was a RON number, like the old 650 had. Wierd that an ADV bike is speced to run on anything other than 87/89 grade.
I'm a XTZ750 rider looking at the GS at the mo'. Browsing through the BM brochure (the UK one at least) it says there's a factory option to get it mapped to run on 'low octane' gas. Can't remember the figures or the rating method, sorry.

Not much help if you've already got one I s'pose but it may mean the remaps an easy one to get done by the dealer.

Interestingly what's the story if you get a 'low octane' mapped bike and then run normal gas - say 95 RON (UK)???? any ideas....?

Neil Smiff
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Old 04-22-2009, 09:56 PM   #40
Bayner
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Joined: Mar 2008
Location: Penticton, BC
Oddometer: 1,457
Cool2

1600 kms so far, rider is 5'10 @ 170lbs
no luggage, stock bike
Daily commute 90-100 kph = avg 4.7L per 100 kms
Agressive riding, offroad and speeds over 100 kph = avg <6.5L per 100 kms
(as indicated by OBC and verified by manual calculation with GPS)

Incidentally, my GPS and speedo/odo are in agreement.
Overall average has been right around 5L/100kms. Overall I'm impressed, I thought it may be worse!! I'm going to watch that average drop off now that I have the knobbies on though...
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Old 04-23-2009, 07:28 AM   #41
SoDak
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Joined: Jul 2006
Location: Black Hills of SD
Oddometer: 65
49mpg, 20 minute daily commute with interstate (75mph) and some city (30mph), have hard bags on at all times
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Old 05-17-2009, 08:56 AM   #42
Boon Booni
Red Clay Halo
 
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Joined: Aug 2003
Location: Richmond, Va
Oddometer: 12,805
So what range are you guys typically getting before fill ups? You've listed miles to empty, but when out on a ride I never push my mileage to the last drops if I can avoid it. On my Weestrom that means filling up between 225-250 miles on a tank. That typically leaves me about half a gallon as backup. I watch my gas gauge and as the last bars drop I can tell pretty accurately how my mileage has been and how much fuel I have left.

What's your typical fill up mileage?
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Old 05-17-2009, 10:44 AM   #43
Motoriley
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Joined: Feb 2003
Location: Deepest darkest burbs of Montreal
Oddometer: 2,647
Mpg

41 and 40 mpg (US), 5.1 and 5.8 l/100km Canadian. Lots of hills and curves.
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Old 05-17-2009, 12:29 PM   #44
Camel ADV
aka Oso Blanco
 
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Joined: Mar 2009
Location: Calgary, Alberta, Canada
Oddometer: 1,264
-Stock gearing, exhaust, windscreen etc
-no luggage
-odo 1300km
-6'3", 240lbs
-40-43mpg for the first several fills
-52mpg on the last tank

Been filling at the same station, same grade and have been riding the same % of city and highway so I'm not sure why the last tank jumped so much (not upset about it...)
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Old 05-17-2009, 04:51 PM   #45
RobStar
Still On Training Wheels
 
Joined: Feb 2009
Location: Las Vegas Baby!
Oddometer: 433
Three months, 3300 miles later with 17 tooth sprocket added

The Variables:
Units: Miles per US gallons
Odometer: 3300 miles
Rider: 5'11" 175 lbs
Luggage: Jesse Odyssey II sides only loaded with general tools, tubes, water bottles etc..
Windscreen: Stock
Exhaust: Stock
Tires: Stock Bridgestone
Misc: Adv-Spec crash bars and bash guard
Riding Conditions: Mix of highway at 65-75 mph +/-, twisty back roads, many short trips and errands. Generally windy conditions always in Las Vegas!
Results:
In my first post after the first 500 miles I averaged only 30.3 miles per gallon.

At this point I'm averaging 49-54 mpg pretty consistently and calculated with a calculator not the OBC. No issues with the OBC mileage readings though but after running out of gas the first week I give it plenty of respect/cushion, have the fuel range set on my GPS as a reminder and now carry two MSR fuel bottles in DV and off-road.

I'm switching to TKC 80's next week so it will be interesting to see the difference for my around town stuff.

RobStar
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