Fuel Reserve Experience

Where the heck are you at that it's 101 degrees already?

If you play around with the dash, you can probably find somewhere that'll show you your exact range and gallons remaining. Pretty handy feature on newer trucks compared to the older ones with a questionable fuel gauge lol.

 

My best guess is your truck is showing the Add Fuel warning with about 80 gallons used. I'm surprised your truck waits until 10 gallons remaining in the tank to warn you that you are almost out of fuel. Using smaller fuel tanks is a pretty easy way to reduce the weight of the truck which increases MPG, all other things being equal.

Does your truck have a fuel gallon counter? It is probably buried inside the dashboard or information system menus. Each time you fill up the fuel tanks, reset that fuel gallon counter to zero. The next time When you fill up the fuel tanks how many gallons do you put in? Compare that truck fuel gallon counter of consumed fuel with the number of gallons you are using to fill up the tanks. Make sure you fill up the tanks to the same level each time, whether you shut off the pump when the automatic off happens or whether you fill the tanks to the last drop you can put in.

 

101? That thing show 105.

 

2023 t880 with an X15.135 gallon tank,low fuel came on and I stopped for fuel.It took 85 gallons to fill it,so I still had 50 gallons in the tank.

 

I've never run a tank that low on purpose.

sucks up trash.

 

GO GET FUEL at 250 miles, once you run out of fuel, it will be a problem for you to get it started again.

 

Did it run out of fuel?

 

I had a 2008 t800 brand new with an X15.It had an 85 gallon tank.Dealer was showing me everything on the truck.He said if the fuel light comes on you're only good for about 30 miles.If you ever run it out of fuel they're not easy to get restarted.