I've been tracking my fuel use in my PDA using a fuel log program and prior to the switch over to winter gas, I average about 15.5 mpg. Now that the winter gas is at most stations, I am down to about 14.5mpg. I drive 34 one way to work. It's about 25% city and the rest is highway at 85 mph. So far I am happy with the mileage compared to my chevy 1500HD.
Linc
www.2wheelinnovations.com