yes i realize that but my dads 05 f350 diesel had one that big thats why i was surpirsed.

 

Filled it up yesterday. 275 miles on the tank. It took a little over 20 gallons; I have a 25-gallon tank. MPG came out to 13.3 with the raw calculation, and I'm getting 14 m.p.g. when I apply the oversized tire coefficient (20/19).

By the way, how much gas is left in the tank when the Low Fuel Warning Light comes on?

 

^^ Good question.

 

If I'm not mistaken, I believe the "Low Fuel" indicator is a Federally Madated 2 gallons remaining. I know its been discussed here before but I can't find the thread.

 

you have the same truck as me. it should be a 24.5 gal tank

 

i reset my trip odometer when my light comes on and the farthest ive ever made it is 34 miles. fords gas lights are known for bein long

 

I heard that you have two gallons once the light comes on.

 

I have the 5.4 and in the summer I get a little over 300/tank. Right now I'm getting 200+/tank bcuz I let it warm up every morning

 

better than me. ive only gone 26 miles after the light comes on lol

 

Well I am currently at 195 miles and have a quarter of a tank left. Once the light comes on I'll fill her up.
She is a Ext. 1999. Fifty of those miles are highway, but my city driving is mainly going to/from school, and when I leave its like you go for 5 seconds and sit for a short bit...I usually let it shift around 1800 RPM to. And have nice short burst of using that skinny pedal every once in a while.