Thanks for the invitation to share, Diesel :)
On my 2000 ST1100PY I averaged 5.8654 l/100km over 122 refuellings.
My best was 5.0885 l/100km; worst was 6.9854.
On my 2004 ST1300A I averaged 5.9246 l/100km over 72 refuellings.
My best was 4.9769 l/100km; worst was 7.093.
On my current 2009 ST1300A I'm averaging 5.5097 l/100km over 94 refuellings.
My best has been 4.67 l/100km; worst was 6.8281.
Why the variation between the two ST1300s?
One explanation could be the fact the 2004 figures began at 66,590 kms, whereas the current bike began at 5500 and hence is newer and probably more "in tune".
Another factor is I have done much more "out of city" riding on this bike, including two FarRides, the STOC Rally and a trip to Tassie.
I'm also older and much more sensible now.
Darn, while I'm away working my butt off, Brock is whacking it!!!!