Any of us previous 09 F800GS owners will be inclined to think that MG took a lesson from Beemer. Our fuel mileage computer readouts and countdowns were way out of whack at first leading me to run out of gas three times before an update fixed it. One was at 8kms left in town and the worst was at 32kms left (or to go before empty) in the middle of nowhere. So, I for one am happy with the huge reserve. Better to be warned way in advanced than to run out. And I did let it stretch out once for a little too long before I found a station. Actually had me getting a bit worried. Turned out I still had half a gallon in there.