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Post by Buccaneer on Jul 17, 2005 13:41:30 GMT 2
I note that fuel consumptions mentioned in various fora, as well as that I've seen on the on-board computer, are given in litres / 100km.
I know that this is a popular unit in various places, but being an engineer I find it's arbitrariness disconcerting and I far prefer the more pure km / l.
Does anyone know if one can change the computer to display consumption in km / l?
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Post by Buccaneer on Aug 4, 2005 16:15:28 GMT 2
Ask and you shall receive...
My service manager hooked it up to the diagnostics machine today, and changed the units. Bingo! ;D ;D ;D
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Post by RichardH on Aug 25, 2005 18:59:30 GMT 2
::)Mr Engineer, there is nothing arbitrary about it - the two are completely different...  Fuel consumption (i.e. volume per unit of distance) is measured in litres/100kms. Fuel economy (i.e. distance per unit of volume) is measured in kms/litre. Either way, the R1200RT goes v - e - r - y f - a - r on very little! ...but then again, I'm just a dumb Architect ;D |
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Post by Buccaneer on Aug 25, 2005 19:25:21 GMT 2
The arbitrary part is the "100" km. A real unit is based on units, like ONE kilometre, ONE litre.
"100" is completely arbitrary - why not 50km, or 1000 km, or 34.7km? Or 15.4 furlongs or 19 cubits?
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Post by RichardH on Aug 28, 2005 19:41:30 GMT 2
It's not arbitrary - it's just convention... Who said North is up and South is down on a map? Who said that a day is 24 hours each having 60 minutes each having 60 seconds? The SI units (metric system) still accept the Second as a unit of measure for time (being 0.0000115 of a rotation of the earth!!??) in some units e.g. watt. Why do we discuss speed using kms per hour and not metres per second? Because it's more useful to know how far you will travel in an hour, I'd suggest. Likewise, it is more useful to know how many litres of fuel one would need to travel an average trip lasting an hour so therefore litres per 100 kilometres. It also eliminates having the figure in 6 or 7 decimal points of a litre to show any difference. But Bucc, just for you, be happy that your R1200RT's fuel consumption is 5.5ml of fuel to travel one kilometre. That's about 1 teaspoon for two furlongs ;D (Actually I had a new display fitted into my car and it defaulted to km/l, so I had to have it changed the other way. I found it disturbing to have the reading reduce the harder you pressed the accellerator and when at fuel shut-off idling downhill, I found the 999.99km/l really wierd)  |
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Post by intrepid on May 31, 2006 1:22:46 GMT 2
I am new to the site and as arcane as it is, it was this topic that caught my eye. I am in Calgary Canada but purchased my RT in the U.S. because of the huge price advantage in doing so. Trouble is all the units are standard (i.e. U.S.) whereas Canada has been metric for the last 30 years. The speedometer is not a problem since the analogue dial is both in kph and mph but the temp, distances traveled, and fuel economy are all in standard measurement. Now the computer on my BMW car easily converts from standard to metric but there appears no such 'button' to push on the RT. I was encouraged by Bucaneer's post that he was able to get the units on the fuel consumption changed by a service manager using the diagnostic machine - ego, do you think the same can be done to change the computer from standard to metric? Any response would be most appreciated.
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Post by Buccaneer on May 31, 2006 8:49:51 GMT 2
Absolutely. Just ask your service manager, all units can be changed to metric. If he can't or won't help, try another dealer. :-)
Oh, and Richard, to respond to your rant somewhat belatedly, whether you call it consumption or efficiency, your have proved my point. The difference between 18.1 km/l and 14.3 km/l is very clear, but the difference between 5.5 l/100km and 6.99 l/100km is far less clear. At least to me.
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Post by intrepid on May 31, 2006 19:17:36 GMT 2
Thanks for your quick and encouraging response Buccaneer. I am surprised the U.S. dealer didn't know this could be done, in any event I have to get the bike inspected by the local dealer to satisfy importation regulations and I will raise the issue with them at that time. I must say I am impressed with the board you have running here and it's most evident that much of the credit goes to you as the administrator. I intend to keep posted (and posting).
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Post by Buccaneer on May 31, 2006 23:12:29 GMT 2
Thanks for the kind words, mate. I try. Unfortunately this board is actually very quiet. It's been running for several years now, but only a handful of club members use it. For a better look at an active biking community in SA, pop by the Think Bike forums: www.thinkbike.co.za/talk/phpBB2You'll have to register to get access to the really interesting parts though. :-) |
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Post by wannabee on May 6, 2007 20:57:05 GMT 2
Hi, I am also in Canada and I am looking at an RT in the US. I was wondering if Intrepid had any success converting the measurements to metric? That would be my preference as well if it is possilbe.
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Post by dvdman on Sept 19, 2007 23:38:56 GMT 2
I'm sure converting to Metric measurements must be possible.
My RT is Metric... It is only software so it must be possible to change it.
Check with the BMW Dealer.
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Post by intrepid on Feb 22, 2008 22:05:56 GMT 2
Sorry Wannabee, I haven't been keeping up with this board and consequently didn't see your post. The short answer is that the units can definitely be changed and I finally got it accomplished at the mechanic level. Anything above the mechanic level resulted in a big lie - that it couldn't be done. The lie I am convinced is quite deliberate and it is done to better safeguard the gouging of Canadian consumers who based on last year's pricing were paying over $7,000 more for a typically equipted 1200RT. Hope you bought in the States. p.s. make sure the mechanic also flips over the Fahrenheit units to Celsius I still haven't managed to get this done on my bike.
Geez, just found out about Buccaneer and feel sick. It was because of him - and only because of him - that I kept insisting the conversion was possible after every one up and down the the line at BMW in the Canada and the U.S. insisted it couldn't be done. Bucc was right and that, by the looks of all the recent posts on him, should not be surprising.
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Post by wowposter on Sept 8, 2008 16:20:41 GMT 2
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Post by wowposter on Sept 11, 2008 10:21:25 GMT 2
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Post by wowposter on Oct 29, 2008 12:47:19 GMT 2
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