Filled up my new '09 yesterday at 415 miles TOTAL on the ODO, but first - SOME DISCLAIMERS:
1. I removed the charcoal canister because I won't be in California;
2. I NEVER fill-up unless I'll be riding at least 15 miles, because...
3. I fill-up while straddling the bike and I put gas into the "filler tube" to that part where the final tube part is, that 'melds' into the opening you get when you open the cap, and that's 1/2" to 5/8" from the very top (about an extra .3 US gallon by my reckoning); and
4. I broke-in the engine via the MotoMan method in the first 50 miles.
I had ridden 263.7 miles on that tank, most of which was at highway speeds of around 75 mph (between 55 and 85 in reality) because of 2 round-trips into Phoenix on the interstate, and, although I had been on the last guage 'segment' for a few miles, it only started to flash a mile or two before I filled up, so I figure that there was about 3.5L gas still in the tank.
The fill (to my USUAL point) was 4.662 USG which means I got 56.56 MPG, and STILL had around 50 miles to tank dry!
For those of the "Imperial gallon" persuasion - that converts to 70.7 MPG!
I am BLOODY WELL IMPRESSED!
I thought I got good mileage on my KLR at (BEST...) of 78 MPG Imperial, but that's ONLY attainable traveling around 55 mph (90 kms/hr)!
...Guess the Versys is a KEEPER.