When someone asked me about the fuel consumption of the Wee and Glee's you can easily break it down.
k4-k6 = 50-55mpg
k7-L1= 55-60mpg
L2> = 60-65mpg
this is due to different ECU's with different fueling maps.
My K6 had a 16bit ECU that had a more basic map and was set for the restrictions on emissions at that time. K7 came and got a 32bit ECU with a more complex map and riding the same way as a K4-6 on the same route under the same conditions the K7 would get marginally better MPG.
The Glee's then got an updated map that presumably will be to meet Euro 4 emissions as Suzuki seem to be making no plans to end the V-Strom 650 like other manufactures are doing with many of their bikes. (look at Triumph with the new 900 Bonnie)
All of the 650cc bikes regardless of year should be able to comfortable get 200 miles to the tank.
I regularly fueled up around the 170-180 mile mark. That's not to say there wasn't loads of fuel left to get me well past 200 miles, but I didn't want to run the fuel level down as the fuel pump is in the tank and is cooled by the fuel in the tank.
The Glee's tanks lost 2ltr of capacity, but with the better mpg would still get more range from a full tank than my K6.
It's all come down to how you ride it anyway.
I'd rather have a few more smiles and less miles, but saying that my 53.4mpg over 60k miles on the K6 is a good average considering I did a lot of short commuting and town riding.
My Varadero (thirsty beast) gets 200 miles to the 25ltr tank without much effort, but returns around 43mpg, which is quite good when you take into account the origins of the engine -big valves for power, not so great for fuel economy.
The best mpg I ever achieved on the K6 Wee was 68mpg, riding the full length of the M4 at 70mph, solo with no luggage. I was board to tears, but when I fuelled up at 228 miles I still had 2 bars lit on the dash.
