MK3 owners manual says that there is about 5.6 liters of usable fuel in the tank when the indicator starts flashing. I think the longest trip I have done between filling up was 420 km which would be 260 of your look-we-are-so-special-that-we-have-our-own-units miles. As I usually fill and ride, as opposed to fill and park it, I tend to overfill it because I will immediately consume it anyway, not worrying about the necessary expansion room. This is why my tank range may be a bit on the longer side. Also I ride conservatively so the fuel consumption is about 4.2l/100km. Anyway, the real shitty thing is that Kawasakis don't have the "trip fuel" feature. The fuel indicator flashing does not give me any useful information if I don't know when did it start flashing. So as all this always ends, the best way to know where you're at is knowing your fuel consumption, filling it to the brim and resetting the trip meter. I use trip A for fuel and trip B for chain lube intervals.