ADVrider

Go Back   ADVrider > Bikes > GSpot > Parallel Universe
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 09-30-2010, 05:09 PM   #1
Migs OP
Gnarly Adventurer
 
Migs's Avatar
 
Joined: Jan 2010
Location: La Paz, Bolivia
Oddometer: 165
F800GS computed range on full tank wrong?

Friends:

What's with the F800GS computer as regards range based on gas tank level? My tank is full but the range reads 174 which I presume is kilometers, which is quite a bit less than I expect. Is this normal or am I doing something wrong?

Thanks for enlightening me,

Migs
__________________
"I consider myself a road man for the lords of karma"~Hunter S Thompson
"He who is not afraid will always be safe." -Lao Tzu
"Do not be bothered by anything."-S. Suzuki
Migs is offline   Reply With Quote
Old 09-30-2010, 05:39 PM   #2
tex99999
Ferryman
 
Joined: Apr 2010
Location: Toronto/Fort Lauderdale
Oddometer: 69
Quote:
Originally Posted by Migs
Friends:

What's with the F800GS computer as regards range based on gas tank level? My tank is full but the range reads 174 which I presume is kilometers, which is quite a bit less than I expect. Is this normal or am I doing something wrong?

Thanks for enlightening me,

Migs
Better read the manual - it explains everything...

Jon
__________________
03 K1200 GT
30th Anniversary F800GS - first bike
tex99999 is offline   Reply With Quote
Old 09-30-2010, 06:42 PM   #3
Migs OP
Gnarly Adventurer
 
Migs's Avatar
 
Joined: Jan 2010
Location: La Paz, Bolivia
Oddometer: 165
Pg 25-26 of the manual says:
Kilometres travelled after fuel down to reserve with on-board computer OE Once the fuel has dropped to the reserve level, the reading shows the kilometres travelled since then. This counter is reset as soon as refuelling brings the total quantity of fuel on board back above the reserve level.

OK: "Kilometres travelled after fuel down to reserve" - why would I care about the distance traveled? I want to know how far I can still go. Even better what distance I can travel with a full tank. This makes no sense yet!
__________________
"I consider myself a road man for the lords of karma"~Hunter S Thompson
"He who is not afraid will always be safe." -Lao Tzu
"Do not be bothered by anything."-S. Suzuki
Migs is offline   Reply With Quote
Old 09-30-2010, 09:58 PM   #4
RedHawk47
Adventurer
 
RedHawk47's Avatar
 
Joined: Oct 2006
Location: Berthoud, CO
Oddometer: 369
Page 46

The system cannot tell exactly
how much fuel is on board when
the tank is completely full. Under
these circumstances the display
shows a minimum-range figure
accompanied by a
> symbol. A
more accurate figure for range is
shown as soon as the fuel level

can be measured exactly.
__________________
Dan
It's never too late to have a happy childhood. -- Tom Robbins
13 Moto Guzzi Stelvio NTX
09 BMW F800GS
99 KLR 650 A13
RedHawk47 is offline   Reply With Quote
Old 09-30-2010, 11:39 PM   #5
CheckerdD
Beastly Adventurer
 
CheckerdD's Avatar
 
Joined: Apr 2005
Location: Dave Rankine, Reno NV
Oddometer: 1,264
Oh my God

The fuel gauge remaining mileage/kilometer function does not work to well. Most read not at all correctly, to low, till about 80-100 miles to go. I think that is about 130 to 160 klicks. Keep a log of what the gauge says when you fill up, and how much you put in, and you will get to know its limitations.
I was tempted to get really sarcastic with you because this has been discussed before. Dave
__________________
Pavement! We don't need no stinkin pavement.
CheckerdD is offline   Reply With Quote
Old 10-01-2010, 12:55 AM   #6
Migs OP
Gnarly Adventurer
 
Migs's Avatar
 
Joined: Jan 2010
Location: La Paz, Bolivia
Oddometer: 165
Thanks to all of you for the patience with my question. As some might not realize there are two things that might tire the older users on the forum, that a new user has no control over:
-search is really poor on these forums, and most of us are not good searchers. Indeed, search is an art now a days. Even using Google site search with many terms quickly overwhelms Google.
-new users have no way of knowing that some topic was discussed.
So thanks again for the help.
-Migs
__________________
"I consider myself a road man for the lords of karma"~Hunter S Thompson
"He who is not afraid will always be safe." -Lao Tzu
"Do not be bothered by anything."-S. Suzuki
Migs is offline   Reply With Quote
Old 10-01-2010, 06:19 AM   #7
Migs OP
Gnarly Adventurer
 
Migs's Avatar
 
Joined: Jan 2010
Location: La Paz, Bolivia
Oddometer: 165
Quote:
Originally Posted by RedHawk47
The system cannot tell exactly
how much fuel is on board when
the tank is completely full. Under
these circumstances the display
shows a minimum-range figure
accompanied by a
> symbol. A
more accurate figure for range is
shown as soon as the fuel level

can be measured exactly.
Redhawk: My 2009 manual doesnt have that. It is a spanish version...

I get the idea though. Make my own calculations and go from there. I got hopeful: I have a Toyota Land Cruiser that adds the "kilometers" in the main and sub fuel tanks and continuously displays the range left.
-Migs
__________________
"I consider myself a road man for the lords of karma"~Hunter S Thompson
"He who is not afraid will always be safe." -Lao Tzu
"Do not be bothered by anything."-S. Suzuki
Migs is offline   Reply With Quote
Old 10-01-2010, 07:38 AM   #8
johnparjr
Gnarly Adventurer
 
johnparjr's Avatar
 
Joined: Mar 2010
Location: Roseville
Oddometer: 204
mine is fairly accurate but I don't go by it anyways
johnparjr is offline   Reply With Quote
Old 10-01-2010, 07:56 AM   #9
Effisland
Gnarly Adventurer
 
Effisland's Avatar
 
Joined: Feb 2010
Location: Vancouver, BC Canada
Oddometer: 156
Quote:
Originally Posted by Migs
Redhawk: My 2009 manual doesnt have that. It is a spanish version...

I get the idea though. Make my own calculations and go from there. I got hopeful: I have a Toyota Land Cruiser that adds the "kilometers" in the main and sub fuel tanks and continuously displays the range left.
-Migs
Just keep in mind that changing your driving style will affect the estimate of kms left, based on the increase/decrease fuel consumption. I've noticed the kms left drop dramatically if I begin riding harder.

Also, I agree - the search sucks! Was looking for the thread about changing the rear tire that was here a couple months ago. Think I could find it? Welcome to the forum!
Effisland is offline   Reply With Quote
Old 10-01-2010, 04:17 PM   #10
EnderTheX
Drunken Squirrel
 
EnderTheX's Avatar
 
Joined: Mar 2009
Location: DFW Area, TX
Oddometer: 2,707
Quote:
Originally Posted by Effisland
Just keep in mind that changing your driving style will affect the estimate of kms left, based on the increase/decrease fuel consumption. I've noticed the kms left drop dramatically if I begin riding harder.

Also, I agree - the search sucks! Was looking for the thread about changing the rear tire that was here a couple months ago. Think I could find it? Welcome to the forum!
I couldn't agree more about both points.. ADVrider search sucks lol, use google to search this site, much easier.


Also on the fuel gauge use your head! If it reads 20 miles or less to empty find a gas station that is less than a half gallon!

Show me a vehicle with a more accurate fuel gauge, I dare you! Most of our cars have a little analogue gauge that can be +/- 20 miles easy.

Besides... running your tank very low or empty is hard on the fuel pump because the fuel is used to cool the pump.

EnderTheX is offline   Reply With Quote
Old 10-04-2010, 02:41 PM   #11
MaxReving
Gnarly Adventurer
 
MaxReving's Avatar
 
Joined: Aug 2009
Location: On The Twisty Roads
Oddometer: 182
Quote:
Originally Posted by Migs
Pg 25-26 of the manual says:
Kilometres travelled after fuel down to reserve with on-board computer OE Once the fuel has dropped to the reserve level, the reading shows the kilometres travelled since then. This counter is reset as soon as refuelling brings the total quantity of fuel on board back above the reserve level.

OK: "Kilometres travelled after fuel down to reserve" - why would I care about the distance traveled? I want to know how far I can still go. Even better what distance I can travel with a full tank. This makes no sense yet!
BMW Motorrad has realized that the estimation of "range" has been too inaccurate due to the use of the "tape/strip" measuring system. They have therefore on the new 2011 models eliminated the "range" in the software. When you flick through the different modes with the info button (when you have a gas level above the 4 liter reserve) then it does not show range anymore. It now works as described in the quote above.
MaxReving is offline   Reply With Quote
Old 10-06-2010, 07:05 PM   #12
mxbulldog
Braaaap!
 
Joined: Jul 2008
Location: Grandora, SK
Oddometer: 116
Went on a ride yesterday. Bike was telling me I had 40km left in the tank. Showing 2 bars on the fuel gauge. When I rolled into the gas station I topped it up to the very top and it only took a little over 13 liters. My gauge appears to be extremely pessimistic. This is after 8000km on the bike and I was riding with a good tailwind but the average mileage was right around normal.
mxbulldog is offline   Reply With Quote
Old 10-06-2010, 07:19 PM   #13
Singletrack_mind
Cave Man
 
Joined: Aug 2008
Location: Northern New Mexico
Oddometer: 361
Quote:
Originally Posted by karstenwind
BMW Motorrad has realized that the estimation of "range" has been too inaccurate due to the use of the "tape/strip" measuring system. They have therefore on the new 2011 models eliminated the "range" in the software. When you flick through the different modes with the info button (when you have a gas level above the 4 liter reserve) then it does not show range anymore. It now works as described in the quote above.
Well damn. Does anyone know if this change is a physical hardware change or just a software change, and if it's software, is it something they are going to try and install on older bikes as they are serviced at dealers for this issue or others?I like my range estimating feature and wouldn't want it "updated" to the system described. I've found it to be very accurate and useful. I've only had one big moment of doubt where I chose to fill up because I thought I should and discovered that the estimate was indeed way off, but that can be attributed to burning much of the tank on slow dirt riding and then switching to 80mph highway. Even that sort of thing usually doesn't result in unrealistic estimates on my bike though, I like the original system. Taken with a grain of salt & remembering it's an "estimate", not a guaranty, I find it useful.
Singletrack_mind is offline   Reply With Quote
Old 10-07-2010, 11:51 AM   #14
IQm3
Adventurer
 
IQm3's Avatar
 
Joined: Aug 2010
Location: Mexico
Oddometer: 28
Thumb Range

A full tank in the F800GS should give you 320km (200mi) range.

The actual reading on the fuel autonomy should be: > 200

This means that you have more than 200km of fuel autonomy.

That is why the fuel gauge is all the way up.

Depending on your driving style you should exepect that the reading give you a fairly accurate estimate of how much fuel is left in the tank.

If you're not at all satisfied with this reading, you can always reset the trip odometer every time you fill up the tank.

IQm3 is offline   Reply With Quote
Old 10-08-2010, 01:39 PM   #15
MaxReving
Gnarly Adventurer
 
MaxReving's Avatar
 
Joined: Aug 2009
Location: On The Twisty Roads
Oddometer: 182
Quote:
Originally Posted by Singletrack_mind


Well damn. Does anyone know if this change is a physical hardware change or just a software change, and if it's software, is it something they are going to try and install on older bikes as they are serviced at dealers for this issue or others?I like my range estimating feature and wouldn't want it "updated" to the system described. I've found it to be very accurate and useful. I've only had one big moment of doubt where I chose to fill up because I thought I should and discovered that the estimate was indeed way off, but that can be attributed to burning much of the tank on slow dirt riding and then switching to 80mph highway. Even that sort of thing usually doesn't result in unrealistic estimates on my bike though, I like the original system. Taken with a grain of salt & remembering it's an "estimate", not a guaranty, I find it useful.
I have just been at Intermot 2010 in Cologne Germany where I asked the specialists at the BMW Motorrad stand that very same question and they said that when you update the software on an older (pre 2011 model) then the "range" function will be eliminated. This is not good news for all that have an older model. For a lot of riders the range" function is one of the most important and mostly used features.

I will try to verify this at my local BMW service partner and get back asap with more info.
MaxReving is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 01:07 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014