I got my car outta the shop. Had the fuel pump and filter replaced. The agent told me my fuel tank was extremely dirty and that the filter was clogged and since they have changed to a new filter and cleaned out the fuel tank and replaced the fuel pump. The fuel pump was coated in grey sludge, and there was this 'gunk' in the tank. The fuel filter looked as if it was filtering charcoal dust. the car is now purring like a kitten and 'roars' like a lion!! before i had the vx repaired, my fuel gauge (distance to empty) reading would never read more than 450km to empty. But now, the reading is showing 590km to empty on a full tank. Is this accurate? I know that this is just a general indication of how much distance the car can cover but i i am wondering if there is a way to calibrate the fuel tank reading. It will take some time to compare the miles i've driven by checking against the odometer. any ideas? is this normal? or should i just leave it? I hope to post some pics of my vx soon as she got out of the shop with a new paint job. update you all later ya?