The miles to empty will change based on your driving habits.

 

^ this. It changes based on previous average fuel economy. Drive for about 70 miles and it will change.

 

let your wife drive it. It will probably show 500 miles. That's how mine works

 

Thanks guys. Does this somehow affect the fuel gauge as well? Not sure how that would be, but I know I put in no where close to 1/2 tank worth of gas but that's what the needle shows. This isn't my DD and I think I've only filled the tank up maybe twice so far.

 

In the two trucks I've owned, (last one had a 22 gal tank) I've noticed the half of the gauge from 1/2 to E always seems to fall faster than from full to 1/2. Not sure why, but think it might have to do with the gas sloshing around in the tank a lot more because it's half empty and the sending unit will only react so fast.

Also when going up or down steep grades my fuel level can shift 1/4 or more.

Either way I don't think you have have a problem and I wouldn't worry.

 

ya. Drive it more. It fluctuates.

 

When my 36 gallon tank is empty (according to the gas gauge) it really seems to have 6 gallons left. At E, I can only put in 30 gallons. My uneducated guess is: that is the 6 gallons they want you to keep in to cool the fuel pump. I have yet to test this theory by running it out of gas, thank goodness.

 

So we've got 30 gallon tanks with a 6 gallon reserve.

 

Most I've ever put in mine was 33 gallons. 4 miles to E on the dash.

 

For huge weight savings at the track, I dropped my 36, and went with a 5 gallon fuel cell.

Fuel cell is disguised as an empty bucket.

 

For huge weight savings at the track, I dropped my 36, and went with a 5 gallon fuel cell.
View attachment 19425
Fuel cell is disguised as an empty bucket.

These tanks are long!

 

If you restart the truck with the front end higher than the rear when you are almost empty the DTE and amount of fuel will be higher than it was when parked because the fuel pickup is towards the back of the tank.

 

I've noticed the same thing with our 36 gallon tank. At empty the most I can get in it is the neighborhood of 30 gallons. Unless we're traveling I always only put 50 bucks (13 ish gals) in it when it's empty and it brings it up to a 1/2 tank. The miles to empty is 46 when the chimes goes off.