Quote:
Originally Posted by TTDegs
the distance left is worked out by:
knowing how much fuel is left in the tank; and
the mpg you have been doing over the last few miles.
Therefore, if you had been driving at (say) 15 mpg, and had 6 gallons left, it would say 90 miles to go.
If you then took it a bit more steady over the next 40 miles - and got (say) 30 mpg, you would have about 4 gallons left and it would say 120 miles to go.
That's all a bit simplistic and extreme, but is close enough to illustrate what happens  |
But what average consumption does it use just after you fill up?
I think it defaults to something at that point rather than using actual history.