A few months ago when I filled my truck up all the way with gas, I noticed the destination til empty was about 443 miles. Lately, it has been more around the 330 mark. Any reason for this?

 

Do u drive city or highway more? More range on highway.

 

Mixture

 

Really isn't super accurate anyway. Mine will stay same miles for several days when I've drove 50-60 miles.
I think that just goes off the gas gauge reading for an estimate using some predetermined mpg.
I have run it down to 12-15 miles a couple times. Gas gauge right above the red mark.

 

With the 5.0 I'm getting about 16 mpg on every tank 90% city driving so the miles to empty showed 576 when I filled up last night. Unleaded is under $3 here now. Let the good times roll.

 

It is only based on your prior driving, so if that changes, the calculation will do its best to keep up. For example, I left on a trip a few days ago w/ about 1/2 a tank of gas; most of that 1/2 tank had been city driving w/ the avg. showing about 17.5 for that tank. I started off on the freeway, and the number was about the same for a long time, as the average for the tank was creeping up.

Not sure if I'm explaining it very well, but mine has been pretty accurate, if a little conservative (as they all are). I've run it down to 0 several times, and had a little more than a gallon of fuel left in the tank when I filled up.