Mileage Question BMW R1200RTLC Maximum Mileage on 1 Tank of Gasoline

I was wondering what is the maximum mileage I could get on my 2016 BMW R1200RT LC on one tank of gas. I planned a trip from Long Island, NY, Throgs Neck Bridge, Bronx River Pkway, Cross Island Pkwy, and up the Taconic State Parkway to a point 130 miles away. Then, I planned to turn around and return back home with the intentions of running out of gas. When I'm leaving, the mileage RANGE reads 286 miles maximum, other sources say just 230-250, still other sources say as much as 300-310 is is possible. My bike has a minimum of farkles, upgraded PUIG Highway Windscreen, Highway pegs, Top Case, Crash Bars, Floor Boards rider and passenger, Gerbings Heated Clothing, Corbin Heated Seat, and a SW Motech Tank Bag from TT. I left under the cover of darkness and the temp was 31 deg, I'm prepared to literally 'run out' of gas on the side of the highway, and so I have 3L extra fuel [2 Primus bottles 1.5 L each] for the side of the road for 'refueling' once I've depleted all of my gasoline in the tank. I'm recording a video documenting miles traveled and miles remaining [according to the BMW trip computer] every hour starting at 5:40 am, EST, New York. 5 hrs and 17 mins later I have my answer! Hope you enjoy my video and learn as much as I did during this experiment. Thanks for watching !