My truck will say 10 miles till empty and I'm at 1/8th of a tank and when I fill up I only put in 24-25 gallons. I still have 9-10 gallons left and this has happen since I bought the truck. It's a 2015 F250 with 15k miles. Should I get that check or just leave it alone?

 

Mines off by a few less gallons than yours but I know how far off it is so I just live with it, it doesn't hurt anything.

Denny

 

My truck is like yours. I'm use to it. Really doesn't bother me I'd leave it unless it really bugs you.

 

Eh doesn't really bug me but I would like to know if I can go another 50-75 miles to cheaper gas. Lol

 

or buy a Scangauge with trip computer...pretty accurate

 

I reset the trip screen when I fill up because it shows how many gallons you've used. Mine is almost always accurate to within a gallon.

 

and if Ford designed it to be accurate... people everywhere will be running OUT of Gas.

that was the problem with the aftermarket ones back in the 80's....

History... and Human Nature.. people with 10 miles to go will try for 11 an that gas station will be closed or Very Busy.. and then try for the next one.

you measure gas at 1 oz at a time over 30 gallons and see how hard it is.

<<<<<< You do KNOW running you tank that LOW can burn up your fuel pump..."RIGHT".. the fuel cools the pump.... number one reason for pump failure is overheating.. only way to overheat a pump is running tank LOW of fuel..>>>>>>>>>>>

and running the tank LOW on a Hot day makes the Fuel Hotter...as such.. making the pump hotter...

 

Mines off too. I had 1 mile to empty and was only able to put 30 gallons in. What's the point of the bigger tank if you can't use it? My 2012 F150 was fairly accurate on the miles to empty. It was nice to be able to take advantage of the large tank size.
The gallons used seems to be accurate. Can the tank be run dry or is there some number of gallons that can't be used?

 

I seem to have the opposite problem, I fill up with 15 gallons and the trip computer will show 12-13 used.

 

My guage is off too since new will only take 24-25 gals when reading empty. I do find it annoying.

 

Mine's the same. Tons of fuel left after it bingo's, though the gallons used in the trip computer is pretty accurate.

Also - ever notice that you can get another two and a half gallons in after the gas pump clicks off?

-Gator

 

I might be lucky to get in another 1/2 gallon after the first click.

 

I can't get much more gas in after the pump clicks off either. I just wonder how how many usable gallons I have. One of these days I may have to take a trip with a gas can to find the answer.

 

Same with my new truck but the old F350, I could get at least a couple of gallons more.

 

I have the same thing, low fuel on and it takes 25 to fill it, I wondered if it had wrong tank on it as I bought it used, a 15 F350 XLT 4x4