What KM per liter are you getting, I am getting only 17km per liter is this good or bad. At about 240 km the thing starts to run out of fuel, fuel tank hold 17 liters.
I have the 17 ltr tank aswell. At about 220klm the fuel warning light comes on and i generally fill up within 20 km.
I always seem to have 4 - 5 litres in the tank as the most ive ever pumped in is 12 lts.
I once had a friend witha fuel can and i got 270 before i chickened out and pulled into a servo.