Hi All. I hae a 2010 Discovery 4 SD V6 HSE. The last couple of weeks I have been told by the car its empty. (17km on average left in tank) only to put around 68 to 70 litres in the car afterwards. I have taken it twice to Land Rover and they changed the float and told me there is nothing wrong with the car. Its roughly a 84 Litre tank which I am currently using 70 Litres. Does this sound right? Is anyone else having similar problems.