Fuel Tank Mileage

  • Thread starter Thread starter bigfish1978
  • Start date Start date
mostly B- and A roads, revving between 3-4k, takes me to about 200 miles until the light comes on. Average mpg - 45-48mpg.

Martin
 
My 1150 GS used to average 44mpg (high of 49). This was with speedo about 8% optimistic so real average was just above 40mpg.

1200GS averaging around 50mpg. Low of 48, high of 55mpg. Speedo appears accurate. Yellow light normally between 190 and 200. Most miles before refill 260 miles.

Paul
 
I usually get to around 230miles before going onto reserve on my R100GS, this is on my 65 mile commute to work.
Andy
 
I got 256 miles out of my 1100 in 2003 in Morocco and still hadn't ran out, the light had been on for at least 50 mile.
 
TT41L

Hmm... Up to 700 kilometres (430 miles). But my riding style mostly costs average 500-600 kilometres max. :D

Dudes, doesn't it get boring to refill so often??? :confused:

:GS is for RIDING, not for refuling!

Mo@41 litre Touratech, can't imagine life without it :D :D :D

DSCN8393.jpg
 
I saw that 41ltr tank in the Touratech Catalogue.

Does it not make the bike a bitch to handle when filled up ???
 
bigfish1978 said:
I saw that 41ltr tank in the Touratech Catalogue.

Does it not make the bike a bitch to handle when filled up ???

Handling b*tch? Hmm... I wonder how 900RR Paris-Dakar BMW riders did with their 54 litres till the finsih with seerious rallye enduro ride... :D

Noupe. It gives the same centre of gravity - the two lobes are lower than original.

And gooood pro is that it take some wind out of your knees too! :) The GS really feels more comfortable with it and has more high-distance enduro look that catches more eyes on the streets. Every other fellow biker i've told that my tank fits 41L pisses it's pants full and can't believe it :D.

Slight con is that it uses about 39 litre maximum out of 41 litre. Same defect as original GS tank - the two lobes design doesn't allow good usage of fuel (orig. tank fits 24 but uses 22 litres or so). So it's not blamable.

I highly recommended the TT tank to any serious boxa :GSer out there.

Mo
 
Thank goodness for that

Dunk said:
Jesus, I only get about 100-110 to fuel light flashing. This is a London commute of 25 miles a day and I'm in 1st and 2nd gears only and I get in about 19 1/2 litres when I refuel. Not that great I guess, but I don't care. I got more with my old Hornet but my smile is bigger now.

Dunk

Thought I was alone with my 30mpg London kamikaze commute. How some of you guys manage 180/190 per refill staggers me. Do you ride it or push it ? :D
 
i'm curious how you keep the revs down to 3-4k :P

My 1150GS just seems to go straight towards the red line most of the time, probably why I only get about 38-40mpg :eek:

i did try once to drive it in the bottom end of the rev range just to see, what it was capable of..............gave upafter a day - I got bored.

Steve
 
My GS Adv.....

Based on a year (20,000kms/12000 miles) of only paying for my petrol with a credit card I achieved an average of 41mpg.

I haven't actually measured my best consumption but my worst was a memorable 19.9mpg, that was practically all hilly highway riding, 2 up (about 200kg), with a loaded topbox and never going below 100mph, mostly I was between 112 and 120 mph.

Obviously the GSA with it's shortened 6th gear is never going to compete with a GS in mpg on the highway, but up in the mountains and on twisty "B" type roads the lower 6th is more useable so it probably gets evened out.

I've checked the speedo many times with my Garmin and only get a maximum of 5% error.



:beerjug:
 
I borrowed a Garmin off a mate and whilst the speedo showed 80 the Garmin showed 78.9 !

New record for me is 201 to the light but it was boring getting their !
 
Dude, get some education on engines.

Boxer's specific part is that it has the best torque and horsepower spot in the middle area of the revs compared with V- and inline engines, and power even falls slightly off in the high revs.

Revving it hard only kills your engine sooner and you don't get much Nm's and Hp's out it too this way (unless you have full boxer-Cup tuning set installed on your bike to get more high-end out of it).

Or you have psychological dilemma that if it makes more noise - if it screams loud on higher rpms so it runs faster, eh? :D

Get Yamaha R6 inline then - that has till 16 000rpm and makes a lot of noise, runs the fastest on that spot too, btw :D

Mo

welder8uk said:
i'm curious how you keep the revs down to 3-4k :P

My 1150GS just seems to go straight towards the red line most of the time, probably why I only get about 38-40mpg :eek:

i did try once to drive it in the bottom end of the rev range just to see, what it was capable of..............gave upafter a day - I got bored.

Steve
 
Na, ive got to say i find that most of the power comes in 5-7k range. After that there seems to be very little to be gained.

This ties in exactely with that expected from the BBpower chip page (which is fitted), see http://home.t-online.de/home/bbpower/r15gs1e.htm

Would love to see the power curve youve seen that puts max power at approx 4k - mind you your engine would last a lifetime if it didnt coke up .:)


Steve
 
Source from our local fellow here his R11GS on dyno in reality (not marketing trick):
BMWdyyno.jpg


That's the one from turbo-equpped R11GS and w/o it. Look at the w/o turbo option curves.

You see the max hp produced with max torque support peak is on 4500-5500rmps. Hps will increase a bit after that, but no torque support - it falls. There's simply no point revving it, it means just killing it.

To check your BB Chip one i recommend doing your own dyno test, not looking on marketing tricks. Would be interesting to see the difference too (Chip on/off).

Mo - gladly runs his boxer next 10 years w/o expensive engine rebuilds, the unique boxers aren't made to scream anyway. :) One of the keys of BMW reliability - not to stress engine to get power out of it.
 


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