Menace

I think when you are at 0 miles till empty, there is still about a gallon of fuel left in the car. I've tested it once, and the far when topped off was only at 15 gallons (and we are supposed to have a 16 gallon tank)

With that being said I think the onboard computer, at least mine, has been very accurate in determining miles till empty. I mean, every aspect of the fuel is determined by the computer... Your odometer, computer.. Your computer also knows much much fuel is left... So in theory, it knows how much it is using and how much you've gone and it can then do the math to tell what your average miles till empty would be. It changes on the fly based on your usage, etc.


Anyway, with all that being said I really can't tell you Op. Unless they are doing something with the gas then I'm not sure. My car used to average 300-320. Then it started averaging around 220. I cleaned everything, changed everything, and relocated and now I'm seeing 260-280.

danzcool

The best way to increase the miles to empty is to remove the lead from your shoes... but that's no fun.

But seriously, the colder the air, the more fuel that has to be added to keep the A/F at a given level. The car shouyld also be peppier.