st3 milage

some more swedish kilometers this last week,after commenting last week on my st3,s milage i ran some checks...........at a steady 90kph shes returning 620-650kilometers for the whole tank,equals out to about 30 something per litre,although when forced to drive so slowly,the computer on function5 is showing sometimes figures of a possible 700-745 per tank......is this normal.generally at 110 kph shes returning about27-28kp litre not bad,its easy to cover these distances here as the roads are so good,i may even drop a cog on the front and rear just to stretch it out even further??...the bike certainly has the pulling power for it , but would like any feedback as to any possible side effects this may have.....maybe theres some of us out here who dont want to go so fast ,but just for a long time.........hope this helps ................ massa