I took my car to the dealership last week because I have yet to fill my 60 litre tank fully. What I mean is that if the fuel gauge says E, I am only able to put about 40 to 41 litres into the tank. The dealership had it for the morning, tested the fuel sending unit, the light, the gauge and the resistance, and it all tested normal. They said that once the gauge hits E there is still 100 to 150 kilometres left in the tank. The theory is that the vehicle may be used for off-roading, or beach runs and therefore far away from a gas station...needing more of a reserve to get you to the nearest gas station.