My S10 is a standard uk spec 2011 bike with 8.5k. I ride with the yam top box and a givi screen. Most of my riding is motorway or dual carriageway stuff, 200-300 miles a day when I take the bike. Where traffic allows I sit at about 90-95 and at this pace I get 42-43 mpg(uk gallons). If I do more single carriageway miles or there is a lot of roadworks/traffic I get 45mpg. The best I've managed was 47mpg, but that was in freezing and snowy weather.
I'm still waiting for the UK ECUnleashed agent to start doing reflashes and will see what effect that has on my mpg.
I'm still waiting for the UK ECUnleashed agent to start doing reflashes and will see what effect that has on my mpg.