My mileage used to be between 40 and 45 mpg for the first 500 miles and then after the first oil change it dropped to 35 - 40. I would think with the synthetic oil it would have improved. I think the change may be because I am riding faster now. Almost all my miles are freeway and I used to cruise at an indicated 70mph and now I cruise at an indicated 80 mph. Still, for a bone stock bike it seems a little low. Could it still be breaking in? I know my car took a few thousand miles before it's mileage maximized.
