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Thread: Low fuel light on 1998 R1100R

  1. #1
    RD'nNH&AZ rdhudson's Avatar
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    Low fuel light on 1998 R1100R

    I checked my fuel mileage and am getting about 46MPG. The low fuel light is coming on at 160 miles. Phil Hawksley's BMW Motorcycle Information Site lists the fuel capacity at 6.34 US gallons. I would go on fumes at something over 275 miles. Is the 160 "normal" for the light or did I bend something when I changed the fuel filter when I got the bike?
    Ralph
    2002 F650GS, 1998 R1100R 75th anniversary edition, 1983 R80RT (just sold), 1959 R60 (in restoration), Honda CT90
    If you must make a mistake, make a new one each time.

  2. #2
    BMW Rider
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    Quote Originally Posted by rdhudson View Post
    I checked my fuel mileage and am getting about 46MPG. The low fuel light is coming on at 160 miles. Phil Hawksley's BMW Motorcycle Information Site lists the fuel capacity at 6.34 US gallons. I would go on fumes at something over 275 miles. Is the 160 "normal" for the light or did I bend something when I changed the fuel filter when I got the bike?
    Ralph
    I have a 1999 R1100R - I don't think that 6.34 is correct. I forget the exact number but my tank holds 5 and change in gallons. Your low fuel light coming on at 160 would be very much in my ball park. I will cmfortably get fuel when local anywhere from 200 to 225 miles on the trip meter. Reserve is approximately 1 gal so I am into the reserve at my stated trip meter numbers.

    At a steady 70ish mph my bike will average approximately 52 mpg. Headwinds will knock it down to about 46 to 48 mpg. I ride with a Cee Bailey with +5 inches and at my height of 6' 1" the windshield is about as close to perfect in height as you're likely to get. I do look over the windshield and not through it.

    By the way... isn't that fuel filter fun to change?

  3. #3
    Day Dreaming ... happy wanderer's Avatar
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    Fuel capacity for the R1100R is 21 litres / 4.61 gal / 5.54 gal US
    MJM - BeeCeeBeemers Motorcycle Club Vancouver B.C.
    '81 R80G/S, '82 R100RS, '00 R1100RT

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    Registered User 36654's Avatar
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    Quote Originally Posted by happy wanderer View Post
    Fuel capacity for the R1100R is 21 litres / 4.61 gal / 5.54 gal US
    You guys still use Imperial Gallons? I haven't seen that since our family fishing trips to Ontario in the late 60's...............
    Cave contents: 99 R11RS, 2013 Toyota Tacoma, 03 Simplicity Legacy, 97 Stihl FS75, Dewalt DW625 & DW744

  5. #5
    RD'nNH&AZ rdhudson's Avatar
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    Thanks

    I'll adjust my thinking. The 5+ gallons should mean I can go the 200+ on the trip meter. BTW I'll check my mileage a few times as I would love to find it at 50+. When the tank gets filled tomorrow there will be 180+ on the last fill up at 50-60 local roads for half and then 70 return on the slab. It should be typical. I have the BMW shield on and no bags for this ride. At 5'8" and 185 I should get close to Billy's

    Ralph
    2002 F650GS, 1998 R1100R 75th anniversary edition, 1983 R80RT (just sold), 1959 R60 (in restoration), Honda CT90
    If you must make a mistake, make a new one each time.

  6. #6
    Registered User roger 04 rt's Avatar
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    The BMW spec is 51 mpg at 56 mph, and 41 mpg at 75 mph. It seems to me like you're in the ballpark.

  7. #7
    Day Dreaming ... happy wanderer's Avatar
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    Quote Originally Posted by 36654 View Post
    You guys still use Imperial Gallons? I haven't seen that since our family fishing trips to Ontario in the late 60's...............
    Nah. I pasted the data from Phil Hawksley's wonderful site. Canada started going metric in 1970 and dropped Imperial Gallons around 1972 I think it was. Canada modified the weights and measures act, changed all the scales, gas pumps and well, everything in the entire country over the next few years.

    When it came time for the USA to switch over Reagan decided in 1980 he didn't like the idea and took all the funding away from the US Metric Board. That screwed us (and many other trading partners) right up. Oddly just before leaving office in 1988 he changed his mind and declared metric the preferred system.

    Fast forward 40 years and that leaves the USA, Liberia and Burma as the only non metric nations in the world.

    Go figure.
    MJM - BeeCeeBeemers Motorcycle Club Vancouver B.C.
    '81 R80G/S, '82 R100RS, '00 R1100RT

  8. #8
    Registered User 36654's Avatar
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    Quote Originally Posted by happy wanderer View Post
    When it came time for the USA to switch over Reagan .........................................

    Fast forward 40 years and that leaves the USA, Liberia and Burma as the only non metric nations in the world.

    Go figure.
    Yep, I lived that history. My engineering education in the late 70's was in metric.
    Cave contents: 99 R11RS, 2013 Toyota Tacoma, 03 Simplicity Legacy, 97 Stihl FS75, Dewalt DW625 & DW744

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