According to the trip computer my 2010 GSA with 4000miles is averaging 49 mpg, Today the computer was telling me I had 67 miles worth of fuel left, the trip said I had covered 336 miles on the tank full, the fuel light had not yet come on either, better fill up I thought. Filled up and it took 33.57 Lts

, my understanding is that the light comes on with approx 4 Lts of fuel left, if I had 67 miles left to run then the light should had have come on, even so 67 equates to about 1 and half Lts in the tank and it still took 33.57 Lt, in a tank that is only 33Lts capacity

, so it must have had 35+ Lts in it, or it was empty and runs on fresh air, or it has a mysterious void hiding extra fuel. To cut a long story short my fuel guage can't be too accurate either or surely the light should have come on before it got that low, it must have been very close to spluttering to a halt, trip meter is the safest way to go and fill up at about 300 miles to be safe.