Originally Posted by Kabigon
If that's true then the algorithm needs some work. Of course DTE must be based in part on fuel consumption, however...
1) If the tank is below a certain level (approx. 1 gallon), DTE should read zero.
2) If the tank is literally empty, DTE *must* read zero.
Based on my experience so far it was trending close to reading 0 miles with 1 gallon of gas left (1.1 gal left = dte of 4 miles), however I had been getting an average of 37.x mpg over the entire tank, however for the first 100 or so miles when it was mainly in town the distance to empty dropped quicker as the average mileage was only 33-34 mpg. However depending on how strongly it takes the over all average vs an instantaneous average to factor the DTE it could make the difference in if it says you were going to have x miles of range left but then run out before then, or if you had y miles of range left but had z gallons of gas left when you refueled.
I guess its not that consistent between drivers let alone between two identically driven tanks of gasoline.
If we could get some one who programmed it to explain why people have such different outcomes that might help, but I think we may have covered it already.